Well, I thought the body was pretty much rust free but I did find a little spot on the drivers side cab corner. Here are some pics of the repair:
Aww Dang! Rust found

Cutting it out

Cleaned out

Traced a filler piece on sheetmetal, cut it out with the bandsaw

Tig Welded in the patch (looks like crap, just about out of gas....doh!)

Welds ground down

Sanded and ready for mud