Holy crap, I hope they didn't salvage that already. Part that thing out and start over (Not because I want your mirrors or anything). Don't let your insurance company do that to you. If you have a B18C1, it's already worth more than what they'll sell you the salvage for. I'm sure you have loads of parts that people on this board want and who would be glad to help you out.
Again, I'm glad you're okay. Did you ever figure out what the back of your head hit? And was that haircut before or after the hospital visit?