That could be a good starting point. I was thinking that using the droid's head and joints while building up a framework out of wire and sculpting the body and limbs around it using sculpey, could work. I am not the sculpey expert here, I believe that Customcloner John has had quite a bit of experience with it. Alas, my former apprentice hasn't been present here, in some time.
Mesa thinks the Dark Side got him.