Just a thought......
It depends on your dealer, but that crack was already started while under warranty. They may or may not help out, but it would be worth a try. I know we all hear the bad stories on here, but I have a good dealer over in Texas that I drive about 80 miles to get to, because they have helped me out and treated me fair in the past.
If that doesn't work out check the classifieds and other boards. I got a used ATS 3-piece for a good price out of the classifieds here at the the TDR.
Just a few thoughts.
Todd