If you can get the pans like you want them now and primed you will be one step closer to finished. Some will put it back like it was made the first time. The rest of us will do the best we can. I cleaned, sandblasted, used phosphoric acid and followed that with POR's Marine Clean then POR-15. I then dusted the last coat with primer and primed when all was dry. If you aren't doing a Fred Flintstone out of the floor it will keep for a year or two. Clean it keep it dry and do it once when you are ready.