I can highly recommend 2 resources.

Don Goldberg
DAG Camera Repair
2128 Vintage Drive
Oregon, WI 53575

Sherry Krauter
Golden Touch Quality Camera Repair
118 Purgatory Road
Campbell Hall, NY 10916

I have used them both and they are the best of the best.

Thanks for your work on the Angulon, it's great as always!
Richard Wasserman