Just a word of caution:
When I bought my RV, it had a spare tire carrier mounted on the hitch reciever. From years of that weight bouncing up and down, metal fatigue set in. The attachment to the frame actually ripped off, tearing right through the metal brackets.
Seems like a good, quick fix, but I would hesitate unless you are sure the attachment of your receiver to the frame can withstand years of that vibrating, bouncing load.
31ft Dutchmen Royal Classic