Is there a good way to restore the lower door panels? Dont really want to buy new ones yet. Mine are in bad shape. You can scrape off plastic with your fingernails, same goes for the rear (part that goes over the rear wheels and has the storage container) i assume they dont make those parts anymore. I was figuring just sand it smotth and cover it with some fiberglass and resign and sanding it some more and spray paint it.