Fuel cell

Anyone install a fuel cell in their truck? i need info on this cause i have a air suspension set-up with a c-notched frame and my gas tank sits where the c-notch is...So for now we moved the gas tank into the bed but we need a fuel cell set-up and was seeing about using the factory fuel pump and lines...i know they come AN but i con use the rubber lines to the an fittings but what about the pump?