Larry in nw ohio
Gary you don not need a big 120v electric motor, your not working with turning a tree. You only turning a 20lb. of something.Surplus center has a couple I just looked at one runs 62 rpm and costs$9 and the othe is$7 and runs75 rpm. They are on page129, and these are only two that I looked at. I would highly suggest one from them unless you can find something else. I delt with these people na few times and are good to deal with. Good luck with your experiment. If you go to the web site look for gearmotor. Larry