Kenyon; You could take the doors and other removable body parts and have them dipped at one of those derust places. Another possibility would be to make your own dip tank using lye and electrolysis which is very effective at removing paint as well as rust, but I would have to make a phone call to find out have to set it up again if you are interested. Then there is the old standby, sandblasting, which will take the rust down to bare metal but you have the risk of warpage if its not handled right. I think that if you remove all of the rust, even in the pits, and keep to your plan, then you won't have a problem. Best Regards Arran Foster 1954 Imperial Newport Needing A Left side Taillight Bezel And Other trim Parts. Also needs the trunk floor sandblasted.