Anywhere to get 17x7 SBP plain steel wheels?

I've been looking all over the interweb and can't find what I want - 17x7 SBP plain steel wheels. I'm going to be going for kind of a salt flats rat racer/rod look - low rake with Moon spun aluminum wheel covers and want the larger diameter wheels. The car is a '65 barracuda that has had the brake system completely redone, from the master cyl to the drums and I really don't want to toss a perfectly good set up to switch to the larger bolt pattern. I've found 15s but I'm hoping one of you guys know where I might find something bigger.
Thanks!