Hello Steven. I can only recommend the usual places... EBay, supporting vendors here on the forum, the forum classifieds. Check with Luke at Lindsay Cadillac (forum supporting vendor) to see if they can cut you a deal. Good luck.
I have heard good things about Wheels America, that charges a flat rate of$129 for wheel repair, thats bent, scratched, even if it has to be welded. Check them out at-Found out I have a bent wheel yesterday. 04 CTS with Lux/Sport. Polished 17" any good deals on OEM wheel?