Looking for instructions for setting up a Carefree Add-A-Room on a pop-up-camper (Fleetwood Utah). Bought this add-a-room from a dealer, the item was on sale and when we got it home no instruction manual was in the box!! Dealer is unable to supply it. We have contacted the manufacturer, but so far no resonse. Anyone familiar with this product that might have helpful instructions would be a GREAT help. Thanks so much.