I am rebuilding a Jag front end that unbolts at the frame. Total disassembly, all laid out and gonna go through the whole thing. I'm trying to decide whether to just scrape off the loose rust and POR15 it all or have the parts sandblasted then powdercoated. I was thinking about buying the Eastwood powdercoating kit so I could do everything except the crossmember at home. I guess the question is, which results in a tougher finish? That brings me to another question. Can springs be powdercoated since they flex?