Be careful with putting historic tags on it. Almost every state has limits on what you can use a historic tagged vehicle for. they are even busting people for using them to drive to work and back as they are intended as "pleasure vehicles" and are limited to a certian number of miles per year they can be driven.

If the cops see you driving around in a hacked up camper with historic tags on it hauling scrap they are probably gonna get you especially since you are using it for commercial use.......