Thank y'all for your help. In the end it was super easy to convert. I had the spoked wheel so I didn't have to deal with that issue. I purchased the chinese repop version of the hand crank. The benefit to it was that it actually folds and I can still use the dome top. All it took was two screws to remove the motor and light and one screw back in (the motor screw) to put the hand crank back on. Running like a dream. It took me longer to refind the video on youtube than to actually replace it.