I am a total beginner with this sort of thing. I have a crank arm that needs 9 ft lbs to move. I want to add a motor that I can press a button and make it turn one way or the other. I do not need precision, just the minimum to move the crank now and then. I assume that I will need to add a reduction gear of 12 to one for a motor rated above 150 oz in. Anyone have a parts list I can put together Also does anyone else have trouble entering letters into a post like this?