Desperate for a CLEAN '67 Barracuda FB decklid...

I don't think there are many without rust.
They usually rust were the inner and outer panels come together.

I did see a member here had a 67 fastback lid for sale here is a link.
http://www.forabodiesonly.com/mopar/showthread.php?t=125981

He is on the other end of the country though.
Good luck on your search!

norshor