$5400 wow. I took my 2015 Ram eco Diesel to a local independent muffler installer, he installed the kit on the truck, the proportional air brake lines, break a way, for $300
i then went to a local shop that specializes in automotive electrical, and had him install the diodes for the brake lights for $150
i was present during both these installations and I wasn’t that complicated.
My experience with Camping World is love and hate.
try contacting a mobile rv repair company
don't pay Camping World.
look for used tow bars on Craig’s list. I bought my 10,000# road master tow system that way, purchased the kit for the truck from e trailer, they are great, and they have great Ytubes on installment of everything they sell.
Bob