Ouch, If you were in driving distance this would be mine !!!!

I have picked up a couple of mid to later 70's GTB's recently. They are a lot of fun. When you consider the technology available at the time, the rules are really cool. Good luck with the sale bump.

Agreed. I always liken Atlantis to an EM White Water: Aim for the lit targets to make your way through the game. The 5000 point bonus for dropping two targets at once is so cool, it makes you wonder why it hadn't been done previously.