Nice save! If I were to run across IGH's on bad condition bikes like you do I would save them all as well. Have you used any of the Shimano 333 hubs much? From what I've read online they can be problematic. The only older Shimano hub I have is a 3S. It's one of the 1980's models that came after the 333 hubs. It actually shifts smoother and it's quieter than my Nexus 3 hubs.