I got 6K for a non-runner CB 750...
Take a look around and see what 2K gets in your area..
If you really like it, and the pipes are really good & mileage is true,...and you can fix the tank without full repaint, I think it is a good deal if there is no others around.
There is no way all the oil is out of it, and it does not look like it sat outside.
Take a look at another with a header.. then add 500-1000 for pipes, 200 for sidecovers.. 200 if the seat is good... adds up dont it...
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or just run an ad, try to find a barn-fresh for farm prices...