I agree with Cousin Ed. I had mine installed by a body shop. Several reasons this makes sense. The labor rate is usually lower than an RV shop and in some cases, body parts need to be removed to install the brackets and I want those parts replaced properly. A body shop just makes more sense than any other place.
Pete - Full Timing
2000 Country Coach Magna 40', CAT C10, #5892
2006 Jeep Liberty