I'd never heard of civitai, and I'm not sure what I'm supposed to be looking for here.... Just seeing a bunch of ai generated images. Any help on finding actual models? Is it as simple as pasting them into model folder with others?
For model sources you might start from:
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As per your second question, the answer is no: there are at least 2 fondamental steps you have to make in model editing in a program called "Pmx editor" such as adding semi-standard bones (95% of the models already have it) and IK bones (there are plugins for that), than polish the model with "PMX-VMD-Scripting-Tools".
Those are the 2 basic "treatments" i can recognise in every model already in the package, Idk if he did anything else to adapt them to specific tasks...
With that said, it is actually not over... as the models are not standard (there are actually 7+ commonly used body types, very different from one another) a motion working with a model could not work for another.. from misallignment to totally screwd.
A perfect example is the Sin Sac male model: there are 5 or more different versions already in game, and even if they look identical, they have been changed over time in bone structure, therefor their behaviour might be very different..
But if you can perform the first 2 steps, you can try, it's less difficoult to do (with patience) than to explain