Does anyone know how many Kelsey -Hayes wheels were produced for the 13"-4 lug early Corvairs? Also, were they a $300.00 option as I have heard? I have a set of 4 with spinners plus an extra wheel w/o the hub and spinner. I just want to know how rare an option I have. John Johnson 1964 Monza Conv 1965 Corsa Conv 1965 Turbo Coupe