Rust! Should I sell it?

my plan is to wire wheel as much rust off as possible, cut and replace a few small spots that have actually rusted through the metal creating holes. Then apply Evaporust to the entire metal area.

When done I want to coat the entire trunk and undercarriage of the car. I like the KBS coating but I would want to top coat it because it only comes in shiny black.

Would epoxy primer be a good, easier option over the KBS coating?