The only sheet metal I purchased was rear subframe mounts from WN, everything else was self fabricated and welded out of sheet metal. Based on the quality of previous repair work and the overall condition of the car, I wasn't shooting for concourse grade work here. My goals were to make it safe, water tight, and to extend it's life by cutting out and patching any rust I could. The most involved (scary) parts of the project were the subframe reinforcement and the gas tank / trunk / rear fender area that were totally gone. Most surfaces that were not cut out were treated with coroseal rust converting primer. Everything was coated with an enamel, seem sealed, paintable rubberized undercoating, then sprayed again with gloss enamel top coat.