I did pep, but use magnets between top hand and bottom. When i flex too much the magnets break and give me movement, and then click back together when i flatten out.
I say that, but trying to grab stuff. haha. not easy.
I think you'll find it easier to align the pieces if you separate them with a dremel after all the glass & resin & main bondo is done. this way the lines/edges all match up.
I would also put a bit of "extra glass between the eyes and ears so when they are separated, there is little...