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Hate to be the bearer of bad news but I don't think the event will put you over the top. The event starts on 9/20 until the event ends on 9/27. As we learned in the last twitch stream (and seen here in @Vladino screenshot) you can get a total of 5 pouches:
If I remember correctly you can get two things from the pouches: 1 ticket or 1 number. So at max you will get 5 additional numbers from the event. You can get 9 numbers from doing the daily 5 tickets.
A cost conscious approach to increasing power and tech
Special Note
The ease of this process will vary depending on which character is chosen. The key difference being whether the character equips a shield, focus, or totem in the auxiliary equipment slot. Not only do these base items have different stats but they also support different enchants.
Character Baseline
Character is level 100
Equipped all accessories (Earrings, Belt, Rings) from the Lv. 90 Character Growth Goals reward.
Equipped all Dullahan weapons and armor upon reaching level 95 and talking to the Strange Cat for the quest "Traveler's Additional Raid Battle Support".
Enhance the Dullahan weapon to +12 and armors to +13 by using the stones/runes in the "Raid Battle Support Package (Stone/Rune Set)". This is obtained after completing the story "Traveler's Additional Raid Battle Support". Obtain the "Forgotten" title - Complete Season 3; Chapter 2, Episode 2: Blight of the Unseen. Defeat Lorgrach.
Equipped Lv85 Character Growth Reward bracelets. Opened Aislinns's gem box and socketed the 4 character growth gems (Bracelet Diamond, Bracelet Emerald, Bracelet Ruby, Bracelet Sapphire).
Equipped a Ruler's Brooch accessory (2 star quality).
Equipped a standard outfitter. Free standard outfitters can be obtained from seasonal events. Standard and limited outfitters can be purchased from the MP.
No artifact, necklace, or other avatars.
No VIP or other buffs, Ein Lacher titles, or Redeemers (Neamhain/Balor/Brigid) clears.
Character has 132 earned titles and 0 shared titles.
Critical Mastery: Rank 3, Strength Mastery: Rank A, Defense Mastery: Rank A, Willpower Mastery: Rank A, Agility Mastery: Rank A.
Current Status: You can join The Missing Soul, The Price of Failure, Iron Fist, and Distorted Truth raids. Your first roadblock to the next raid will be a stat called Counterforce.
Upgrading your rings, belt, and earrings to reach the next set of raids
Complete the story "Traveler's Astera Raid Support". The story is split into 3 tasks. To begin this story you must obtain "The Enlightened" title - Complete Season 3; Chapter 2, Episode 4: Dogma. Defeat AES Sidhe.
Next talk to the Strange Cat. He will give you the "Counter Accessory Support Package (Earring and Belt)" if you give him Eochaid's Essence and Abomination's Essence. You can obtain these in one of three ways:
A. Trade your seals in the Exchange Shop (Seal Shop tab) to get the "Abomination's Essence Box" and "Eochaid's Essence Box". Each box costs 55 seals.
B. Buy the essences off the marketplace.
C. Obtain Eochaid's Essence from "Agony And Despair" and Abomination's Essence from "Denizen of the Deep"
After trading those two essences you will reach the final part of the story. Next the Strange Cat asks for the "Red Energy Remnant" and "Aes Sidhe's Essence". "Red Energy Remnant" is mis-labeled. It should be "Dullahan's Essence". You can obtain these in one of three ways:
A. Trade your seals in the Exchange Shop (Seal Shop tab) to get the "Dullahan's Essence Box" and "Aes Sidhe's Essence Box". Each box costs 95 seals.
B. Buy the essences off the marketplace.
C. Obtain "Dullahan's Essence" from "The Missing Soul" and "Aes Sidhe's Essence" from "The Price of Failure"
Tips for farming seals:
Open all Episode Reward Boxes and the Lv95 Support Package (Character Growth Reward). Each contains 20 seals.
Royal Army Raid (RAR)
Abyssal Arena
Raids: The Missing Soul, The Price of Failure, Iron Fist, and Distorted Truth
Trade Guild Seals or Honor Medals for Seals of Bravery
Current Status: You can now join Surprise Attack, Devil's Tower, and Red Stigma. Your Power stat will be too low to join the next raid: Grave of Madness
Weapon Options
Each enhancement level adds [+500 Power]
Enhancing the Dulluhan weapon will be the best value. To enhance further it requires reforging. To reforge click on "Enhancement" then click on the "Reforge" tab at the top.
For 95 seals you can get the +13 Restorative Enhancement Rune (Lv95) from the Seal Shop. If you use the Rune you are guaranteed a +13 but you will have to reforge again if you want to attempt +14. Alternately you can risk enhancing from +12 > +13 without this rune. Decide based on the reforge costs. Since reforging utilizes enhancement runes (100 seals from seal shop) this is a gamble.
An Astera weapon is the best upgrade path if you want to run Season 4 content.
A base Lv100 Astera weapon is a downgrade from the free gear. You will need a high-enhancement for Astera weapons to be better than your existing Dullahan weapon. Therefore use your Dullahan weapon until the Astera enhancement is equal to or greater than your Dullahan weapon.
To get the seed money for an Astera you will probably have to farm the raids until you save enough gold.
Armor Options
Upgrading armor is less impactful and more costly than upgrading a weapon.
When upgrading armor some pieces are cheaper to upgrade when factoring in components and enchant costs. I recommend upgrading in the following order: Helmet, Chest, Pants, Gloves / Boots.
A base Lv100 Astera armor is a downgrade from the free gear. You will need a high-enhancement for Astera armors to be better than your existing Dullahan armors. Therefore use your Dullahan armor until the Astera enhancement is equal to or greater than your Dullahan armor.
Accessory Options
Accessories are important for increasing Counterforce but do not have as meaningful an impact on Power and Tech
Equip a Totem / Shield /Focus.
Upgrade the bracelets with fine gems
Enchant the brooch with Warlord's / Healthy.
Additional Ways to increase Power and Tech. All effects stack.
Premium Soap Buff [+2000 Power] or Fine Soap Buff [+1400 Power]
Complete 4 clears of Sea of Reflection (Neamhain) to increase Power by 1000 and Tech by 2. Complete Dark Side of the Moon (Balor): once to increase Power by 500 and Tech by 1. Complete Tempering the Sword (Brigid): once to increase Power by 500 and Tech by 1.
Completion of certain Ein Lacher benchmarks award permanent stat increases.
NOTE: As of 2021 the concepts of Power and Tech were replaced with simple stat requirements of ATT/MATT, DEFENSE, Critical Rate, Balance, Add DMG, and Counterforce. Therefore the below information is outdated but remains for historical reference. See here for an updated guide: https://forums.vindictus.nexon.net/discussion/18799/in-depth-new-player-gearing-guide-2021
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Power & Tech. -- A reference guide
What is Power & Tech.?
After the "Rise update" new stats were added called "Power" and "Tech." (Technique). Power is the combined sum of your ATT/MATT + DEF stats. Tech represents the combined sum of your CRIT + BAL stats.
Why does Power & Tech. matter?
Certain raids have Power & Tech requirements to join/host Quick Battles (QB). These requirements are inline with provided story equipment until you reach the endgame. Once you reach endgame you will need to upgrade your gear to participate in these raids.
This guide covers what?
It covers the best ways to increase your character's Power and Tech requirements. Technical charts are below. A full example character is provided in the next post.
What are the Power & Tech. requirements for endgame raids?
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Special thanks to: @SirRFI for scroll chart templates, All Might for the bosses power and tech requirements chart, Submersed for the title list.
and 4 others. 
and 2 others. 