I've got one of the battery powered motor pods, with controller, exactly what you need. The motor is currently mounted in a larger mount that I made out of carbon fiber and padauk, I think it is, exotic hardwood. But I have the original black aluminum motor pod as well. Not the sensor, that I was unable to remove from my BDR plinth. But it sounds like you have a sensor, and the problem is the motor/controller.
You are welcome to mine for not a lot more than shipping charges. PM if you're interested.
You are welcome to mine for not a lot more than shipping charges. PM if you're interested.