The only way you're going to find another one is by finding another used or NOS Crosstrail;Specialized doesn't sell just the frames. You can go aftermarket,but you're going to spend at least $500+ on a decent frame.
C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes/Novato,Giant Defy 1,Schwinn DBX SuperSport/Qualifier,Brompton S6L,Dahon Speed Pro TT
Some frames can be very specific or really general. If you find a frame that fits you, you can build a bike around that frame. Ebay has a good selection of frames, often from china. I know the have alot of carbon knock off frames and components, maybe try one. I would be guessing by saying that those frames will last, some can be good others trash.