Epoxy or Urethane High Build... what's next for me?

FYI, I've found that the CitriStrip isn't too bad for paint removal. Nothing like the Aircraft Remover of yester-years, but still works. Just have to be patient. I've found that 2 good thick coating, soaking overnight, will strip to bare metal on 90% of the panel. Some area need another treatment or more effort with the wire wheel / sandpaper afterwards.

It also helps a lot if you scuff the paint with 80 grit before you put the stripper on.