I found this thread a while back. It has been a major inspiration for the work on my 1955 Ranch Wagon. The Ranch Wagon is Ford's version of the Nomad and mine has all the same issues. I have replaced the floor and tunnel from under the rear seat forward and the inner and outer rockers. I am working on the right side quarter panels and have the front mostly done. I used your technique for fitting and was able to TIG fuse weld much of the right front horizontal seam. The rest was migged per your technique. I made the copper backup with the magnet on it. Mine work will never equal yours, but with your help, this project is coming out better than the previous ones. Just wanted to say thank you.