Sure would think that the seller would offer more pictures if they wanted top dollar for an original. Does it have the correct carbs, etc? Maybe the buyer would not care, I would.
I purchased mine in 2006 (I think). It was pretty much in the same shape WITHOUT the motor locked up. I paid $6000 and got a repop hood, skis, and some other parts. It cost me $5000 to purchase the parts to restore it and took 2 years to find them all. I suspect that it could be very hard to find some of the parts. The correct tach will be very very hard to find.