Hi, guy's, got my pickup to work on, the title says it's a salvage, and o boy, this thing is sporting at least a half inch of bondo. It was all cracked before I got it, so I'm stripping it and it appers that someone bondoed over major rust, so I'm grinding and wire wheeling it. My quation is should I use self etch before bondo or bondo and go with epoxy? I'm kind of doughting I can remove every tine bit of oxidation.