If rattles bother you stay far far away from a motorhome. Was put on a rear seat of a DC-9, has the turbines mounted at the rear of the fuselage. That loud rattle on the turbine on the starboard side sure bothered me, told the flight attendant, she said the pilot wasn't concerned, I sure was. Could survive an under wing, turbine failure, but on the tail, blows that off with no control of the aircraft, your dead.
Point is, are these rattles affecting your safety, and with ladders, aluminum ones now, should wrap them in foam before tying them down, but also a lot of extra work.
Kids 2009 Dodge Nitro is rust free, daily driver, but would think Ford and Chevrolet would not put their emblems on the tail gates of their pickups. Huge pile of rust back there, front as well. Not very good advertising.