Hey Brain, not sure if this is new or old, I recently paid 552.00 bucks to get mine running good again, They had to make a new reed valve out of fiberglass cause parts were hard to find, or they didn't know where to look, As far as value goes, because they are so rare I could not find any history of what these have sold for in the past, Some say around a thousand, All depends on the buyer, what they are willing to pay for a cool piece of history, and if the seller has personal attachment to it . I could not let mine go for a grand, to hard to find one running and in good shape.
If you do find any info on pricing please let me know, and I'll do the same. But I will say this, when I'm out cruising on mine it's a head turner to say the lease, people go crazy.