Hello, I recently purchased a 74 Charger with less than 15k miles. All original including tires. Only part changed prior to my purchase was the batt. Looking for suggestions on how to preserve its value and deal with surface corrosion on parts like drums, leaf springs, and drive shaft which were never painted. Body, top and interior are almost like new. Also looking for advice on wheel and tire sizes. Want to go with 15" wheels, Indy style and maybe slightly wider tires in rear. 70s in front and 60s in rear. Thanks, JJ.