I have a 46 Chevy truck that I would like to move the gas tank out of the cab of the truck. I would like to move it to a spot in between the frame rails under the bed of the truck. I'ld put the filler sout in the bed of the truck with a flush mount door. My 46 is a 3/4 ton long bed has does anyone have a suggfestion on where I can but a gas tank that will fit this application