Hi Tim
I had the top sandblasted to remove the porcelain. The cabinet, and parts were bead blasted. The parts should be primed with etching primer, then regular primer, then the finish coat. My friend painted the inside of all cabinet parts with spray POR15 for car frames. It is not shiny like the POR15 that I have used. This looks dull and is rough, almost like auto body undercoating.
Good luck with your projects, and be sure to share the photos with us. <: