I have acquired both of my propane tanks(43 lbs a piece) and I'm getting them mounted up as soon as the engine is done. I'm wondering if I can put a fuel guage on the tanks and if I can also put a switch between em. Like what is in a ford truck w/ dual tanks. A switch so that I can switch between the 2. Please let me know so I can figure out my wiring and figure some other things out.