removing paint and fixing a crooked jaw

Hello everyone I had a couple "how do I do this" questions for you guys that I hope you can answer!
1. Is it possible to remove paint from a resin jawset? I bought it used and want to strip the paint from it but didn't want to mess up the resin. Can a use a paint thinner or some other chemical or am I forced to just either repaint it or pick it off by hand?
Here's a picture of said jawset:


2. I got a headbase as part of the trade and noticed that the bottom jaw was crooked and I want to know how to correct this. Here's some pictures:
  

3. Are there any tutorials out there of actually finishing a resin base (installing elastic straps, jawsets, eyes, etc.)? I've found a bunch on doing the sculpting and casting part but none on the actual finishing touches part. I apologize if this has already been answered on here but I couldn't find it.

Thanks! :D