I’m working on it. this is what I got so far. I going to try to make four figures, not possible props, Named left hand, right hand, left foot and right foot. They then can be sized down so they are smaller than the hand and moved around to match. Hopefully I will be able to drop rig each one. So all you have to do is save the outer hand in Posers hands and reapply then to the smaller inner hand that has the webbing.

The textrue should come from your figure map.

Dale