Grave yard cars-Flabber gasted

Oh crap. I've got some B bodies to work on. Does this mean I need to go ahead and stock up on B sheet metal while it is being made?
Keep in mind there is no money in redoing a A body, 20 years from now maybe, after all the B & E sheet metal dries up.

I seems to me that there is more A body sheet metal being reproduced now than 15 years ago.
Maybe not?