Well I managed to make and fix a pulse disc to the back of the motor. The mouse encoder reads it, just not with any accuracy. Used the encoder from the mouse in my drill and it works fine.
Dave: I thought about using a multi-turn pot, there is room to mount one, it is finding a gear that would mesh up with the final output shaft. I know the high end rotors use a pot.

I also have a drive motor from a CD drive that has 3 hall sensors mounted about 10 degrees apart. I could use, not sure how to wire it so you can see the change in direction.

Too much time on my hands.

Bob