I now see a character I've planned to make done. It's amazing. It didn't take a lot of work after all. Or maybe I'm just getting better at this. I can't stress it enough, sculpting while poly-modeling is.. just comfortable and creative.
Anyway, he has a couple of imperfections here and there, but nothing too hard. Building his shape library will be arduous, but hopefully not too difficult. I will have to see how to rig shapes to Unreal Engine nicely enough - and also try keep the face mostly bones - but we'll see.