New to bike-building. I have some fabrication experience, just not on bikes. I recently was GIVEN a West Coast Choopers bicycle, that closely resembles the old Jammer style motorcycle frames. Came across a Tecumseh 5-horse 4 stroke upright, so now I'm looking to mate the two. I'm not interested in keeping the pedal assembly. I'm disabled and don't have the coordination to pedal, but I can hold up and stop a small bike. Right now, I'm trying to figure ou a good way to reverse the sprocket and hub on the rear wheel. I have to flip the sprocket to the left side instead of the right (stock location) to match it to the output on the engine. Any advice on this would be helpful. Also some advice on using sealed bearings between the axle and sprocket/hub would be great. Thanks... Frosty