Where to get gas cap for '65 Barracuda?

[Justcruisin']

I've been looking online for a new gas cap for my '65 Barracuda. Most of the ones I've seen are $65 to $79. Is there a good place to get a good looking, correct gas cap? Are these prices out of line? Any help would be greatly appreciated. Thanks!

 

[cavemanmoron]

ebay

look at Valiant caps.

 

[toolmanmike]

Laysons has them for $59. I have been looking for one for my Dart for some time now. The ones on e-Bay usually go for $30-40 and they are pretty crusty.
Mike