Nappa also sells the return springs, and you can get them on eBay for any specific application.
My wheel of choice is the Honda Insight wheel (2000-2006). The Bridgestone tires that came on them were among the lowest rolling resistance on any production car, past or present, and the 165/65r14 tires + wheels are only ~22-23lbs, and have great aero. They're also a hair larger (22.4 vs 21.8).
