Make sure your welds are complete and don't have any holes. That way no air can get in. The welding will cause a little burning that will use up most of the oxygen. As long as no more air can get in there will be no oxygen and no rust. Then you can paint the outside. I would personally powder coat each panel. You can buy the gun and the powder. Then you can use a plastic drop cloth to gather any extra powder to use again for the next panel. You most likely don't have an oven big enough so rent heat lamps. I would just get some of the foam insulation boards with a reflective side and put them on the other side of the lamp to reflect heat. Doing it that way you could do it a part at a time so every part can be covered. If you don't understand just look up how to powder coat. It is very simple. I was sold on it working on and old car that the guy powder coated to bolt heads. I removed the bolts and put them back and there were no marks from the wrench at all.
hey dub, thats some good info. thanks.
