Here's a two-fer. I happen to know that BF member brockd15 scored a pretty nice 1987 Schwinn Prelude that happened to have the SIS lovingly restored from a cheapo aftermarket stem shifter.
He was so grateful for getting this bike, he compensated said restorer with a 1983 Raleigh Super Course in fabulous condition.
We made the trade because each bike was a better fit for the other person.