Google the part number and contact the vendors that claim to have a gearset.
I've already done that (and continue to do so). This post was part of that effort to turn over as many stones as possible. Most places either show them back-ordered, out of stock, or just don't indicate. I've called a bunch of places, and most take my name and number and tell me they'll check and get back. Everyone so far has said they've checked their sources and come up empty.
I've gone back to my notes from 15-18 years ago, and called a couple places that don't even have a web presence. No dice with them either. Really sad how many if the old places are just gone...
Thanks for your reply!