Looking for help to add slavic culture

[MisterNipples]

As the title suggests, I'd like to add Slavs as a culture with Venedians and Sporoi as the two slav factions.

I've read the tutorials and guides on this forum on how to make mods, Ive also downloaded the software and looked through the game data files, however I find the data overwhelming and don't know how or where to start.

The changes Id like to do:

1. create Slavic culture with unique traits
2. give Slavs unique diplomatic bonuses and penalties against other major cultures
2. create/replace Budini and Cartioi..or however theyre called at Olbia with Venedians and Sporoi with unique faction traits
3. give Venedians and Sporoi barbarian voices, looks, political events, and building tree
4. give them unique research tree
4. assign them units from germans, celts and nomads and rename some units/alter their abilites/alter their stats
5. as a little bonus, give Aesti unique culture as Balts with unique units
6. as a little bonus make some factions playable that have not been (and will never be) released as playable factions (Persia, Helveti, Nori...)

So please whoever can give me advice/who can help me with one or all of those points, let me know.

[Frunk]

Thread moved from WIPs, Ideas & Proposals.

[MisterNipples]

Thank you, kind Sir! I cant wait to read all the helpful replies

[Frunk]

No worries. I'm sure some helpful modders will be along shortly.