3D Building Models for Unreal 4 Game -- 2

I need to build a South American style village that will be 3D and in Unreal 4. There will be: 1. Church (not modular) 2. Houses with interiors (modular), small and simple houses. 3. Marketplace building (modular), this will be just a long series of buildings that would be a place to buy and sell goods. Modular means I will put the houses together in the Unreal Editor using parts of buildings. Example, different walls placed together with a roof, and a door will be required for me to put a house together. Attached are some concepts, and an overview of the layout of the village I will put together. The buildings should have multiple diffused textures that can be applied to make them look different as well. I am looking for similar but different houses.