I don't know if this breaks the rules here, but this is the answer to your question. I will use these myself when I get to that point. They are not cheap, and after diligent search and inquiry, I have not found any others. I saw these on a car during crusin the coast last year and he gave me his info.

http://mcmillanrodandcustom.com/Moldings.ivnu

Don
1950 Chevy Panel Delivery. Purchased in 2008 that was in a family for 35 years. Restomodded in 2006.