I see the older style seats on Ebay quite often. Have you been searching that site for them?
You should also be aware of what the seat looks like and what part numbers are on it so that when you see a seat come up for auction you can verify it's the proper seat.
For what it's worth, it took me over a year to find the right seat with hardware for my plane. I passed on many seats that were for older planes. Be wary of those ad's that say they fit all Cessna 150's etc. That can not be said of all seats that have been made.
If you have an IPC you have all you need to find the seat, if not post back and I'll look up some data for you.
