I´ve got the stock ´92 Rims on my car, Aluminum with some kind of coating on the outside. I know of the coating because it is starting to peel off. I was thinking of maybe sanding them down and polishing them. I know I could probably just go buy some new rims but I´m looking for something fun to do. So any suggestions on how to sand and polish rims so that they shine, and continue to shine?