Best way to upload these models?

So I've ripped a few character models from Fire Emblem: Fates, and the models are seperated into Face, Hair, and then the class outfit model. Like for example, Felicia has a seperate model for hair, her face, and then she uses the default maid body, or really whatever class she's in. So should I upload the hair and face as seperate models, or combine them to the same model while keeping bones? I figure classes could be seperated, such as having default classes like mercenary, then having unique models for certain classes as individual uploads due to different geometry.

I really wanna try to make these as efficient as possible, and without causing too much trouble. Thanks for your time!