so, I lost a lot of progress on this.
Here's what happened:
My first mistake was laziness, I had the brilliant idea that with enough primer and paint, I could fill in all the surface defects and save myself a bunch of finishing work.
Boy was I wrong!
The five coats of primer and six coats of epoxy did their job in smoothing out the surface, but days later the surface was still gummy and getting nicked and marred pretty badly.
So, I did the only sensible thing I could think of. I bathed the thing in acetone and went to work on it with some wirewool and a 5-in-1 tool.
I rinsed off the gunky stripped paint and this is where I ran into some more problems.
The cardboard ring I had hotglued to the inside of my pep model to keep the domes shape went limp when some of the water found its way in.
That gaping hole in the back is the result. I also had to punch out the lenses and mouth backing because so much loose paint gunk had built up in the crevices.
Thats my sad story, time to fix this mess.