Holy crap---a freaken dump truck hit you??? Damnit. You get hurt at all? Could you salvage anything from it? Headers might not fit...because of AWD stuff like you said...Why not just trying to install them to see if they fit? I know it is a daunting task, but throw in a few beers, a few friends, a loud stereo, a few strippers, and you've got yourself a header install party!