I have his 1983 superbike, originally built by Harald Surian. It was ridden in the Eastern Canada Castrol, and National Championship series by Norn Murphy. Although it looked identical to the bike Art Robbins rode, we determined that it was indeed Norm's. It is currently in GS1000s colours and road legal.
The original motor is gone, but a GS1150 motor is there instead (no lack of power!). Everything else: brakes, suspension, frame mods are as raced. I would like to know what it's worth, and the best place to advertise and sell it for the best dollar. Any help would be appreciated.