I made a mannequin for that. CSP modeler is a piece of shit, so I can't get it any better than this right now, but it has functional IKs and works with CSP poses for body and hands, with some manual adjustments. It also got posable toes.
You can download it here: https://drive.google.com/file/d/1qRplPQ2AlAVyFJjonP6-y0EI7mlfKC51/view?usp=share_link I've also included the FBX and Blender files, in case you wanna fuck around and experiment on your own
