I would like to turn the wasted space in front of the rear wheels (between the wheel wells and the cab) into useful storage. I have seen older trucks that have a built-in storage space there. Does anyone know who makes a storage box that can be bolted in there? It would require modifications to the bed (just cut that part of the bed out). It really only looks like a fairing with no real structural function. Any help/guidance would be greatly appreciated. (At this point, I wouldn't consider a utility bed. )