REALLY a tough one! I bought mine for $us1700 with only 5000 miles on it, all original, but by the time it was right, I spent another 5000 or so. Sounds like lots, but it´s easy to do. Cosmetic stuff can be pricey, and the engines require an experienced hand if you don´t want leaks or grief. I think a really good, original example with NO problems should be worth at least $4000. Be ready to put up with a quirky, tricky but FUN motorcycle.