Thats quite the table. Seeing as its 0129 from 1978 its got antique unique status. I agree on the $400 but it could be worth a lot more to a passionate collector. As to upgrading, a little tinfoil and H2O on the rust, pickup some warrior foosmen on ebay for $30, + a little elbow grease and 405 and that table will be as good as gold. There is a definite group that prefer the one man goalie, some people dont even care and thats the first tornado I have seen with 11men up, could be a selling point.
I got very little experience with Foosball though. Someone like BBTuna, grandmaster and such will most likely give you some good info.