Thank you everyone for your input and thanks hokiefyd for the price estimates!

My total budget is pretty low, so basically it's between a fixer upper like this or a department store bike. Would this one, once it has some minor repairs, be of better quality than that? It's down to just the Airstream now, though it does have a non-standard flat bar on it. I'm not sure if that would be good or not, since I prefer an upright position.

Also I'm assuming there's nothing majorly wrong, but if I find that to be untrue, I probably just wouldn't buy it. The owner said the brakes and shifters worked last year, but that it's been sitting outside for a year now.