Interesting concept, but not too many 65 GTOs around. I've actually been pondering trying to trade my 65 442 for a late sixties full size Pontiac or Impala SS hardtop with buckets and console, maybe big block. Something with highway gears and smooth running motor.
I really like that shifter with the two vertical bars and one horizontal. I think it's a 68-69 thing. My old 68 2+2 had it, but it was a powerglide.
This isn't what you're looking for, but it tells me that the potential for trading with someone certainly exists. Maybe in the spring I'll dwell on it further.

My 442 is way too powerful. Guess I got old.

I imagine someone will buy your car. I also had a 67 2+2 convertible back in the late eighties. Nice cars. Good luck.