where can i get an electric fuel shutoff valve? getting ready to install a pusher pump in the line back by the tank. i want to install a shutoff at the same time between the tank and added pump. hidden switch in the cab would be added security, as well as be a way to shut down the engine if "runaway " occurred. jegs and whitney and the local parts stores don' have one. could use a tank switch valve, but would like to have a simple shutoff.