James, the truck is only original once. I am doing a 37 Chev 1/2 ton and leaving the original patina on all the sheet metal. Cleaning everything with vinager and Dawn dish soap and3M pads. Then brushing on penatrol as it does not leave brush marks and protects the rusted surfaces. You can apply a new coat every year or two. What ever you decide to do enjoy and take pictures for the future. Bill
