There was a guy a Rio Bravo who claimed he had a new in the crate Yamaha YZ 465/490 not sure of the year but 80's. He was quietly shopping it, never got a $ out of him. Would be a cool find, there was a 1975 CZ400 that sold on EBay a couple of years ago in the crate, they had cut some flaps in the cardboard to view it, I think it went for around 10K.