Need more information with respect to the following:
-- Are the engine and drivetrain "numbers matching," i.e., was the car "born" with the existing engine and drivetrain?
-- What is the condition of the car?
-- What options came from the factory with the car?
-- Is the car a real GTO Judge or a GTO/Lemans "clone" of a GTO Judge?
You may want to get verification of the exact items the original car was born with from the Pontiac Historical Society by providing the Vehicle Identification Number to PHS.