Great buy! My wife rides a silver 1978 but I believe they made blue ones also. In good shape they seem to run between $800 and $1000 do you did quite well. Ours cost $180 because it didn't run (points, condenser and a carb clean). A simple, easy to ride bike that can get decent mileage as a communter.
Looks like it is missing the factory chain tensioner that is bolted to the lower frame, other than that...looks great!