Thanks for the responses guys. I know if I keep picking at it I will keep making progress. My thought is to get is as close as I can and the pass it on to a body man to complete it.
The problem with getting a new box is that they don't reproduce the short box. This is good compared to what I can find around here. If you can find a short box they are usually badly rusted and they are a farm truck so I wouldn't be much further ahead. You can buy long bed panels but they need to be shortened and the quality of the jobber panels are not of great quality.