No leads on used ones but check out Vintage Wheel Works www.vintagewheelworks.com I am running their V40's in 18X8 and 18X9.5 and they are great wheels, reasonably priced and show off big brakes well.
1969 Camaro Pro Touring: Ls3/565, T56, Chassisworks sub and suspension with double adjustable coilovers F&R. Custom leather interior w/ Recaro seats, Fesler door panels, etc. Mini tubbed, Forgelines.