One hell of an idea Paul and will check into it. What is the recommended stuff to seal the inside panels. I thought that Flex-Seal would be excellent.
You don't want to seal the inside of the doors until all the painting is done. I have had excellent results with a product called PDRP, or what is more commonly known as cosmoline. This is what Ziebart is, and what Miller Meteor used when the car was being produced. I buy it by the case of 12 spray cans. The only problem is that if you use it before you paint, the paint might wrinkle because of the chemical reaction of the paint thinners and the PDRP.