Are you trying to switch out from the standard inward facing seats to a forward facing seat in the back? I am currently doing this in my 90 so I can put my son and his car seat in the back. I found the wheel wells on the Defender are the same width as they are on my old Jeep CJ7. So I bought a Bestop bench seat. Im going to have to fab up some mounting brackets, but it is a lot cheaper than the thousands you have to pay for jump seats from Exmoore.
I want to finally install my forward facing rear bench seat for my daughter, but the upholstery (Trim) is in bad shape. I would be willing to buy a used trim set from a member, long as it's in decent shape. RN does not have them.