Baboons? Hmmmm
I don't see them wearing what the apes we all know and love did. Maybe something more primal from a different region?
By the way, is there a "definitive" map of the POTA world, or at least the US portion of it from after the holocaust?
I think that you have the likeness down! How about a soft, medium, or hard bristle toothbrush. They also sell the wire brushes at harbor freight really cheap.