My only suggestion is to be careful if picking 15" rims these days. The tire shop down the street from me doesn't even stock 15's any more. I imagine your tire choices will be limited, and grow more limited as time goes on. Next to impossible to find 13's or 14's any more, with 16's pretty much the minimum on new cars. Though of course finding anything much bigger than a 15 with the 4-lug pattern's going to be a challenge.