If you want a very nice bike that you will actually ride... Go look at it, leave a deposit and your license in his hands and ride it. If he won't let you ride it, talk him down as if it were not a running, registered, ridable bike. Anyone can make an unregistered, non running bike look good. Imagine the money you could save on registration, insurance, fuel, not to mention rings, bearings, gaskets, tires, chains, etc.