If I’m understanding correctly, you are starting at the root of “Joe”, but you want to get the Transform for “rhand”. The easiest way to achieve this, from my perspective, is a simple enumeration of the transforms until you find the one you’re looking for:
I haven’t tested this code, but I think it’ll work? Basically, it goes through all the children until it finds the Transform with the name you’re looking for. It performs a depth-first search of the hierarchy; an alternative would be a breadth-first search. Also, it won’t necessarily work if there is more than one transform in the hierarchy with the same name - so watch out!