Gentlemen,
I am trying to resurrect a Haban sickle bar attachment.  My immediate concern is the motor.  It has a broken magnet and bad bearings.  Three different rebuild shops have declined. I am pursuing 3 different avenues.
1. Does anyone have more/any specs for this motor?  HP, rpms? GE serial/model number? Perhaps I could find a suitable substitute or parts.
2. Speaking with others it seems there are only a couple original motors around. Any additional info on existing/surviving motors?
3. The broken magnet seems the hardest puzzle piece to solve. Any suggestions?
Thank you for any input.

As an aside, I (my ElecTrak collection) was the cover story of "Vintage Tractor Digest" magazine March/April 2025 issue. See attachment.

Mike.