From what I can find, the Black Bear was made from 1972-1978, which makes it pre Gainsville (a labor strike at the Grayling plant in 1978 caused the move to Gainesville). Dont't know an exact value, but would guess about $125.00-$150.00, or so. You might watch e-bay to get an idea of the value. This link may help you find more info. Hope this helps.
Darrel