allcads has them, and only for 375 dollary doos eek ((plus $100 core)). Might try chipscaddys.com or Aabar cadillac salvage in Oklahoma City. Hope this helps.
Try: Cadillac King www.cadillacking.com Antique auto parts in TX I might have a few other places saved at home on the computer. If can I find them I will post them.