I made those seats from scratch out of wood. The seat backs are two layers of 1/4" plywood that I soaked in water for about an hour to get them to bend. The base is hardboard. I don't do too many interiors anymore because it takes to much of my free time. I just did the interior in my rag but still have to finish installing it. A friend of mine has a Camaro that had a full custom interior in it that I am redoing. Look for it to come out next summer. I am hoping to do a Caddy that Sal Manzano is painting, but I am waiting to see what the owner is going to do. If Sal ever gets my '69 painted I will be putting a loveseat in it. Want to combine some old school square tuck and new school tweed andleather in the '69. When I get a chance, I will post up a how to on how to make the swivel seats and a love seat. Pretty easy stuff once you seen it done and had a little practice.