'72 Frame repair

After talking with my guy and seeing my car for the first time in about three weeks, I'm actually going to need more than just that cross-member piece. I'm actually going to need the entire piece of sheet metal where it starts sloping up and over the rear end (right after the tranny tunnel, part of the floor pan) and at least back to where is slopes back down to form the trunk floor ( the more of the trunk floor I can get, the better, as it saves me from having to buy a repop one). And it needs to be as wide as wheel tub to wheel tub (I think the measurement is around 52" on my car).

I realize this is a HUGE piece of sheet metal and would be difficult to ship. I know of some Mopar only junkyards around me, though, and am really good friends with a restoration guy that does exclusively Mopars, so he knows where I can find stuff like that.