My doors are off the car and the bottom sheet metal on the doors are rusted through. What do people generally do here - have the skins replaced on the whole door or patch the lower section only? I don't how to do this myself but it seems that the labor to do it either way might be about the same(?) Also, one door has a dent about 6 inches across and both have minor dings down the center line. I can't find much on this topic trying to search for it.