Weekend update: I found this listed in the region for a basically reasonable price and grabbed it as a potential donor bike. The problem (aside from the lack of usable shifters) is that the starfish era ssc stuff is much more representative of the early 90s than the late 80s. So, now I have to decide whether to dispense with period correctness and transfer the parts, or just keep them on standby for a different project and continue my search...