The Whittier cars (Shelby Dodges) all featured wheels that came from the Shelby wheel division. Of particular note was the "Fiberide"
http://www.shelbycsx.com/specs.wheels.shtml
Unfortunately, those are the same dates (June 22-26) as SDAC 23 in New Castle Indiana. You should also advertise on turbododge.com and turbo-mopar.com, maybe you can catch someone not going to SDAC?