[TimG]

I saw the Lamar Walden COPO sell for low 40's at a Mecum auction in 2000. I think you were offered the car in the high 30's shortly before the auction, Charley. The LS6 Chevelle convertible was a different car than the one that sold last March in Florida. It was optioned nearly identical, though. Both were originally bench seat with auto transmission.
The retractible was an outside project done by a Chevrolet engineer. The car sat begging to be sold for years at Proteam and they finally restored it. I would guess they have owned this car for about seven years if not more.