So I finally took off the diamond plate water traps on my quarter panels and I was actually pretty pleased with the condition. I thought it would be in alot worse shape under there. I do have some repair to do. I was curious if anyone has done this before or had someone weld in some metal. Any idea of the cost if I took it somewhere to have done? The quarter panels are in pretty decent shape except the very bottom above the tail lights as you see in the photo. So I would imagine I can just put in some new metal there, rather than having to buy two complete quater panels. What is the best way to treat the new metal once it is in? Zero Rust, POR15 or just 3M undercoat on the under side?