Network Ninja

Hey all. I just bought a 88 Xtra cab. The kid I bought it from had a big speaker box and amp in the back, but no seats. I asked about them, and he said they were an option on the 88's. That's sound like bull to me, but whatever. There is mounting hardware for the seats (at least I think it is, see pic). My question is, what can I do to replace these seats? I stopped by a pick-n-pull, but they didn't have anything other than 4-runners. Would any other truck have something similar?

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1988 SR5 Xtra-cab V6 3.0, with rust highlights.

87toypu

Im pretty sure those brackets on either side are just for a shelf that was back there. I had one in mine too. I would be very interested in finding away to fit some seats facing eachother back there though.