You could probably hack an old servo to do what you want. After all, a servo's controller board is basically just a low-power ESC. I hack up old servos and use them as remote light switches and winch controllers for my RC vehicles. If that cheap RC car motor doesn't draw more than a few amps you would wire it into the servo controller board where the original servo motor was connected. Or maybe use a complete servo to move the cable cam. It is fairly simple to modify a servo for continuous rotation.



Sean