Wish I could help you, but I have little clue about repairing tables. This is what I do know about that style of table. It is a one goalie system, and you will need corner ramps to place on the table. Other than that, good luck.
You said the guy left it in the sun, did that mean he also left it in the rain? I think for a table that old the rain might have some ill effects on the playing surface, and maybe the bubbling isn't just due to the sun, but also some table warping from rain. I hope not.... but it's possible. I agree with a post in your other thread about possibly trying to find a better table for cheap, but I still think you should keep that one as a nice little project.