I think I sold my rubber mat for the back. I'll check. I am pretty certain I have weary carpet for the back though!
I know of a junk yard with a middle seat, but it's piled up with crap and I think it's a champagne.
I've passed up a few taillight lenses recently because I didn't want to replace those yet...
I have a few interior panels that could be copied (westy far side from behind driver to spare tire area), Passenger kick panel, and rear hatch piece. If you want to copy them, they are available for such, or you can have them (except the westy panel)