OldIHC

So I saw an old post about the D2 seat. Unfortunately I couldn’t gather enough information to help me. I’ve attached some pictures of the seat that was in the car when I bought it. I don’t think it’s the right one... obviously doesn’t have the plywood on the bottom so I can’t tell exactly where it should sit in relation to the seat mounts. The back looks like it could work but the bottom just seems to wide in the taper doesn’t match the metal frame. Would love to have an original seat but contemplating just getting an upholstery shop to make me a foam one. Any thoughts? Also, I’m looking for that cowl vent cover ( looks like a Boomerang:)