And speaking of spongy flooring, so was the rear seat - same aluminum problem. I'd love to have eliminated wood from the floor and seat, but I'd love to spend an hour in the backseat of a Bentley with Kate Bekinsale, but that's not going to happen either, so I pulled all the upholstery from the rear seat, and used the base to cut another piece of marine plywood, carefully rounding the edges to protect the new upholstery (when I got that project started next). I used resin and fiberglass cloth on the seat to make sure it was substantial, and used all the existing support pieces, but just added them to the wood rear seat base:
1996 Prostar 190, LT1
"5 out of 4 people have a problem with statistics..."