I've had Bob Watkins work on three differnet panoramic cameras for me: Widelux F8 (with F7 gears); Widelux 1500; Noblex 135U. His work is great, no complaints.
I'd talk to Gary in Calgary at https://lensmedicyyc.com/
He's done some good work for me & from the looks of things he's worked on almost anything with a lens!