The ebay link above is a cosmetic restoration and a wallhanger. A grand is wishful thinking. All too many people think that a pretty one will bring big bucks, but not in today's market. He might get $200 if he finds a gur that needs a decoration.
Yours in that condition is worth $50. If someone offers you $30 take it. I have bought similar models for as low as 5 bucks. If I didn't already have one I would offer 20.
Look the motor over and provide the serial and model numbers off the engine tag and I'll tell you the exact year and HP.