The first car I looked at to buy was a 64 GTO Post Sedan. It was silver with a black bench and 4-speed. Yes it was a 3-deuce engine too.
I missed buying the car, in 1970, by 15 minutes. Even offered the guy more than he was asking ($350), but he wouldn't do it.

I've always thought of that car ever since.
Good luck with your search.
__________________
Rick
69 Chevelle SS396 Silver L78 M21 Post Sedan (Berger Chev.)
69 Chevelle SS396 Black L78 4-speed 4.10 Post Sedan

Don't text and drive.
Somebody's life may depend on it!