On my panel I bought the outer cowls, cowl fillers, inner kick panels, the one piece
toe board, the two floor pieces, floor supports, and a new trans hatch. Everything was toast.
IF your floor supports are rusted out , make sure you at least replace those.
The body attaching bolts pass through the floor board and this support, and the
body mount pad to bolt to the frame.
Also, make sure your inner rockers and door posts are solid. The floor and floor supports are attached these to provide rigidity. You'll find that "one thing leads to another", when doing these AD floors. My advice is to buy the pieces you need and take your time lining it all up and start welding!! Have fun
squire