You could make a mint on those mounting brackets if you want to...Did your truck have the 5er/GN prep package?
My truck is a 2013 RAM 2500. I think the prep package is only offered with the 3500's. If there's one for the 2500's, my dealer never mentioned it!
Send me a private message with your email address, and I'll email to you the drawings and pics of my mounting brackets. They basically replace the L brackets that come with a universal mount kit. With the universal kit, one bolt goes thru the bed and into an L bracket, the other just goes thru the sheet metal bed. With mine, both go into a 1/2" thick steel bracket.