fuel tank prep
I got one from a yard that was mostly dirty with a few rust spots. I used coarse steel wool to clean it and then hit the rust spots with a wire brush. I sprayed it with Rustoleum cold galv. I didn't like the appearance, so sprayed over that with Krylon stainless steel and then topped with clear semigloss engine enamel. Pic in my build near end of first page.
edit...forgot to mention I wiped it down with laquer thinner before painting.