Thank you! And to answer your question, yes, absolutely! Anything that works for you is gonna be your best bet but if you’re worried about sizing, don’t be. You can easily resize a model inside the studio but it’d be best to import a rig to blender for easier access.
Now, about color/texture issue. You can separate the meshes in blender then add colors and textures in studio or you an also color/texture the mesh as well. But I usually do the first option since most of my commissions/projects are all about buildings and environment, so yeah.
Try it first! Don’t be afraid to try new things and experiment with what you currently know!