I also have mustang bullit wheels. I'm pleased with them. I just wish I put 18 in on all corners instead of 17 fronts and 18 rears. Like you said, cost to much to get 2 18's for the front now,maybe later. I didn't need spacers front or back, so it can be done. Pics in my gallery.
Thanks for info streetrod... here's some quick chops someone needed. first pic = billet magnum 500 sec pic = deep dish mach 1's