So I have a new project 84 k20. I am looking to make a nice driver nothing to crazy. My questions are I am going to sandblast the chassis and coat it with something but not sure what to use. I have used por 15 at work before and didn't care for it. What would you guys uses ? Also the cab I have to go on it is rust free and I am wanting to coat the bottom of that with something also. Would you guys use the same product as on the chassis or something else ? I do live in the rust belt but don't plan to drive this in winter if I can avoid it.