Jeff, you'll be invited to our VJMC lunch to be held in Columbia on the 31st of January and I'd really like for to to come. There should be 20 guys there with all sorts of experience, much of it British, American, Japanese, and German. Most of the guys grew up workign on, riding, and caring for anything with wheels. The only thing we all really have in common is that we'd all rather be working and riding vintage machinery over the new stuff.
If you don't find anyone having specific experience on that model, don't let that worry you. With a shop manual and careful attention and lots of photos - any level of repair is possible. I don't know if you have ever visited Wheel Through Time up in Maggie Valley, but Dale has some old machines - 300+ in fact. A very good friend of mine does a lot of work for him and has repaired and built many parts so I'm convinced he and his dad can do just about anything.
I'll give you some phone numbers when we meet later this month.
Regards,
Gordon