So sorry for you mate - but at least you're OK.
There's a nice chap in North Norfolk (Peter?) who regularly advertises B parts on ebay, and usually has several B's in various stages of dismemberment in his back yard.
I've been trying to find his phone number but can't locate it. Other members of this forum may have bought from him and may have his contact details. He may be worth a phone call if someone can let you have his number.
Best of luck.