You take 1 session a week @110$ for 3 months and do the rest of your work at a commercial gym. On your one day you go in and use all the fun toys (sled, chains, bands etc). The other 2-3 days a week, your commercial gym should do the trick as long as it has a rack and a bench.
Don't pay attention to the other people in your commercial gym if they bother you by being fat and unmotivated. It isn't about them anyways.