3D models for Sims 3/Sims 4 games

I want to open an online store with different mods for Sims 3 / Sims 4 games. The development of the online store has already been ordered, and now I am looking for a person who will be able to “plain” various 3D objects for the game, but not at the expense of quality, and immediately make them mods for Sims 3 and Sims 4 games.

I'm only interested! Long-term cooperation.

Priority payment is a percentage of each purchased mod. However, there is also a fixed payment for each individual mod.