QueenBee already answers you, but i have maybe some additions (if i understand you correctly).
1) Yes, you find all the mods on Reddit. They are not from the developer (Enlit3d) but from several Modders (like me). And i think there are quite a lot:
You must be registered to see the links
The "Puffy Pussy" Mod is part of my Mod "Body Package":
You must be registered to see the links
2) (Armor, Weapons, Clothes, Custom Bodies and Penis...): New Mod items can be found (automatically) or you can spawn them via the console by entering the unique item ID (uid). E.g.: give_item "
SS_black_collar" will give you the item SS_black_collar. Now you can use the item for your Character or your allies.
Especially for my mods you can also use the "Modding Mall":
You must be registered to see the links
In the Modding Mall dungeon you find all my Mod items in the statues (you do not have to use the console...)
3)... see QueenBees answer
4)... see QueenBees answer
You can directly get in contact with Enlit (the developer of the game) at his Discord Server:
You must be registered to see the links