Finally saw the photos. They are indeed Recaro SR5s! Oh man those are in beautiful condition.

Do note that if you install them like I did, on the BRIDE RO-type rails, the seat height will go down 30mm (1") compared to stock. Just a heads-up so you know what to expect. It took me a while to get used to it, but it's no big deal. If anything the 1" decrease in seat height will leave more room for your thighs.