I have a bit of that on the lower rear of my cab, but replacing the whole thing would be more than I'd want to tackle. As far as shrinking, that's not that hard, and MP&C's posts here and on the forum that he has a link in his signature to have some good tips on that. Any dent is going to stretch the metal a bit, and you have to deal with that. Hammering each dent flat contributes to the oil canning. I have some dents in the vicinity of the three stretchers inside the cab that will be hard to get out, and I'll probably use a bit of filler to deal with those. As far as behind the bed panel, I may not get too carried away with getting that perfect either.
