I have a number of vintage motorcycles that have dents in the tanks. I would like to repair the dents before repainting, but I am unsure how to proceed. Does anyone have suggestions or direct experience with this kind of repair? Would appreciate some insight into this. Also, one of the tanks has rust issues and small (dime sized, or smaller) holes at the top rear. I am a competent welder (mig and gas), but would also appreciate ideas on this kind of repair.