the bumper is held on with 4 screws. Two on the top and two on the bottom. The bumper itself does not look bent. The frame rail ends it is mounted on are not aligned. TO straighten this out would require taking the MH to a shop that has a frame straightening machine, pulling the bumper and having them even out the rail ends. The thing that makes me wonder is that normally there is a large steel plate that spans the distance between the rails If the DR side rail is that much higher I would want to check the welds on that plate before I towed anything. The hitch is welded to that plate.
WBCCI #5501 AIR # 49
1978 Argosy 28 foot Motorhome
Wise men talk because they have something to say; fools, because they have to say something. -- Plato