[Harleys 4 You]

I'm looking at buying a '67 Chevy Stepside. It has factory air on the truck. It doesn't have a motor or tranny. Does anyone know if the air would have been put on at the factory. The glove box door says "Deluxe Air Heater Option # 4C42AA" The only other listings on the sheet are CS10704 w/base 115, 4M17AA 3 Speed Transmission, 4752AA Foam Seat, 4514AA Paint. Can anyone tell me what the factory color was for this truck? I can figure out is that it came from the factory with a 6 cyl 3 speed, but would appreciate all other information.