Price is in the $1000-$2000, they are a RARE year. A much more common 1980 has gone for $1200, mint with 300Mi. How many miles does yours have?
Speed is around 80-90MPH at 6500RPM-7500RPM. depending on tuning and rider weight. It can pop trackies too. The suspension isn't that bad, if it has good shocks. Very fun, reliable. My main sled is a 1979 Exciter, and I will go on 50mi trips. BE WARNED: as with any fan-cooled sled, don't push in temps above 10*F. Going WOT in 20*F for 5min gave me a flashed piston. Hope you like her, I wouldn't sell! Here are pics of what I do on them. Also, look at my sig pic.
PM me if you need any questions. (You shouldn't). I have been in and out of these, doing suspensions, engines, and I completely parted out another one. If you need parts Dennis & Kirk has many, and Yamaha (HIGH price though).
Polish: I'd say a good polish and a buffer would get it shiny.
1997 Yamaha Vmax 600 XTC ER
1979 Yamaha Exciter 440
1997 Yamaha GP 1200 Triple
1967 Mercury Cougar XR7
2015 Season Mileage:860