kx500 - $2500 (chesapeake va)
http://norfolk.craigslist.org/mcy/4500669143.html

New rebuilt engine bottom and top. cylinder has been recoated better then then new. New crank piston and rings. She is fast and ready to hurt somebody. If you never rode one this isn't for you. I will let her go but I don't need too to so be for real before you call. I will let you look around and maybe ride around and in my back yard with cash in hand. other then that don't call or show up.
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1986 KX 500 - $600 (London Mills)
http://quadcities.craigslist.org/mcy/4499178465.html

This bike needs redone. Needs a new top end. The bottom end seems pretty good. It is also missing a few other pieces such as cdi, coil, and kick starter. These bikes are hard to find. Too many projects. Only selling because I need CASH. NO TRADES. $600 OBO