Don't know what seat I have, some sort of 2nd or 3rd row. Not complete yet but I'm including a few pictures to show you the direction I'm going. Using 7/8" steel framing hat channel/Furring, 4 strips. Then 3/4" birch plywood and more steel furring to bolt seat to. You can see where I had to cut/relieve plywood around gas tank filler neck.
