Glad you got something that works. It may be easier to just run off the side tank. The only issue is the fuel gauge. There are gadgets that convert standard fuel senders from one range to a compatible range for your gauge. If you wanted to get really fancy, you could put a float switch in the rear tank like a sump pump so that it would transfer over at a certain level and kick the pump off when it was full. Then it would be practically seamless. Probably more complication than you want but it is an option.