damn, if I didn't just decide to list my car for sale now (by this weekend), I had planned to do an upgraded exhaust next. Just did the down pipe a couple months ago.
You shouldn't have a hard time finding a stock exhaust with as many people as I see upgrading theirs.
Other than that, should be a quick, easy and cheap fix anyway at your local exhaust shop by re-welding that area and/or removing the resonator and replacing it with some new tubing.