Guess we're cheap (poor), and probably stupid by forum standards but our cost was the Hapijac tie-down system, a plug end for truck wired to old camper plug, no labor charges as we did install via family and......yup that was it. Of course our camper only weighed in at 1835# from the factory and only added AC, microwave and awning to camper dry weight on our 1 ton Chevy dually that came from factory back in 2004 with extra camper camper suspension, stabilizer and shocks that are still functioning but actually might need replaced 180,000 miles later.