I hear you on the 18/15 wheel combo and if you're willing to spend the coin on Bogart wheels, the 12.88" rear Wilwood and 16x10" Bogart will work best with the large front 15" brakes. Bogart has an 18" and even 17" that will clear the fronts.
Post some pics when you get those CCWs!
-J
Post some pics when you get those CCWs!
-J