[Cindy and Ray's Grand Tour]

Newby question: I have a roll up Tonneau cover on the 8 foot bed of my RAM 3500. I will be getting a B&W 5th wheel hitch installed in a couple of weeks and want to place a tool box in the front of the bed. Does anyone know how to adjust my current cover to work with a tool box up front without my having to buy a whole new cover? Will the cover go over the hitch when unhooked from the trailer? Is the use of a bed cover common with all you full timers? Any information would be appreciated.