I have done for space a slight modification, separating into two pieces actuator finger and engine stop switch, with the final push inner race.
It is a very simple design, but I think it is interesting because it shows how you can leverage the power on / off to change the rotation direction of the motor.
This switch should be a double switch 6 pin.
To power the circuit I used an old 9 volt charger.
I think the images show is quite evident that the design and assembly.
If anyone has a question, glad to help.
Regards until next time.