Keepin the stock gas tank with a 4link??

Hey,were just in the process of designing where verything will go, my gas tank is raised about 2-3 inches just to clear the bottom of the frame. The question i had is this; Has anyone kept the gas tank in the stock location with a triangulated 4link? Ive got a 10gal air tank in the back of the frame, and i really dont want to put anything in the box of the truck. Any suggestions?