Sounds like a great idea for carrying long pieces, e.g. ladders, pipes, etc. You sometimes see features like this with upfitter boxes on chassis cab models. One advantage of the RamBox is that it provides easy-reach access to the whole storage compartment.One alternate option, one I've considered over the boxes, is DECKED bed sliding storage trays ! Raises the bed by about 11 inches but the DECKED's "deck" has terrific weight capacity and larger floor area than when have RamBoxes . With this option you can still go Tonneau or Cap or other Rail-cage options for adding full rack system or folding / hard-shell tents . . . ?