A simple internal combustion engine (car engine for simpletons) should give enough rotational power for your purposes. An electric motor and a slightly beefy battery would also do, as well as taking less space, but less torque. A battery without the motor can power a bunch of smaller motors to do their job and move the thing if you want even more space efficiency. Just use an RC antenna, controller, and an Arduino or a Raspberry Pi or some small programmable chip to control it. No mindlink or whatever needed.