I know that there are some apartments that are set up in South Haven for pilots. The cost is pretty low. There are some others on this board that have been down there more recently that shoud be able to get you more info.
As far as board goes... If you don't eat out or drink alot, you should be able to finish training and spend less than a thousand bucks. Ramen noodles, peanut butter, mac and cheese, spaghetti, hot dogs, tuna... just like being in college again.
I would suggest doing your shopping at WalMart in South Haven. Safe and cheap. Grocery stores that have armed guards at the entrance can't be a good sign.