Alright, UP (heh.) the first thing I do when I encounter things like this is either go to the kneepads section and get the knee piece itself. The other one is get a whole arm and mask it to a shape. Hope this helps!
P.S. you might want to change the feet and just outstretch the one on FootRight-MaleStandard last page.
And you are becoming better and better (than me) by the minute!