Leaderboard

I would try cloning the project first, and deleting the upper body from one and the lower body from the other. but there's absolutely a chance deleting bones that are a parent of parts of the body you might want to keep could ruin the position and angle of things, so you might indeed need to redo some or all of it. This is likely more or less true depending on the features you used and the bone hierarchy structure. If need be you could also export as sequential images of the current fully assembled characters and then load them in and use them as guides to recreate the animations more quickly and easily. best of luck. I hope it goes smoothly for you whichever way you choose.