Call Fikse direct from the number on their website. They actually have pretty good prices, but they can direct you to a dealer that may have even better prices.
I talked to them when I was looking to buy my Z06 rims, but I ended up going for HRE's. I just liked the look better and the 19" Fikses where not available then. I think maybe even Discount Tire Direct sells Fikse if my mind serves me correct. There is a lot of stuff Discount Tire can get that not a lot people know about.