Bolted the batteries down and attached the controller under the dash. Had hooked up some wires temporarily just to test things out. Decided to bolt the seat on and see if I could make it go. The chain kept coming off but tightening the bolt that held the pulley / gear on seems to have mostly fixed it. The gearing is probably too low, but I’m not in a hurry. Bought some parts to make a better dashboard. Going to start thinking about the blades.