That winstuff place has very little for "vintage" old wings and nothing for seats. I'm nervous about the Ebay one you linked to me as there is no picture and 69 bucks sounds cheap. Thanks for the link though, Ill look into it.
It had seats a while back. I figured they might still. And it is "WingStuff". They've re-vamped a little since I last visited. That eBay one is just a quick find. It would not hurt to also ask to see pictures of it.