Hello jag27
You mention that you have about 300 or 400 motors to do.
If you spend 50 or 60k on a winder,it will cost you 150 to 200 Dl per motor just to pay for he winder.I don't know the cost of each motor, but for such a small size motor it shouldn't be terribly high.
Somebody suggested the Hand winding and I would go with it unless the economics are much different than I envision .
If the motors are all the same,it would be a snap to make all the coils.As for the insertion of same, it would be a great project for a couple of young kids.(with proper supervision they would be thrilled with the opportunity)
It brings to mind one such a deal that as a young man Myself and a friend decided to take up a contract to rewind (at home) blowers from Hairdriers for hair saloons.We soon found ourselves in big trouble, when the wire we used kept breaking all of the time.Wire the size of a Human hair and something like 200 or 300 turns per coil,it became a nightmare.The size of the wire is the clue for a manual job.
GusD