Not with por15, but the insides of the boxes did get painted. I removed most of the heavy scaly rust, then treated the rest with Ospho, a rust converter that forms an Iron phosphate coating, ready to paint right over. I painted it with some leftover Imron polyurethane I had on the shelf. This stuff has awesome adhesion, even with direct-to-metal application, and also has some pretty serious corrosion resistance. I don't know if it still is, but it used to be popular for aircraft and heavy trucks.
I spent all day today lining up, trimming, hammering, and re-shaping the front floor support, inner rocker/floor extension, and lower b-pillar patch to get them to fit. It would be nice if patch panels ever actually fit with no modifications. Got them all welded in, burned myself a few times, dropped the grinder while it was running, and still didn't break anything or even have to get a band aid.
