Winegard Travler about 1600 dollars installed. Limited use if you park in trees. Good ground antenna and tripod about 150 dollars useable almost amywhere with 100 feet of coax. Many of us have both. I do and end up using my ground based dish probably 80% of the time due to trees. My Travler is automatic, but with the right tools, my ground antenna sets up in minutes.
BTW we have the wireless Genie system for home use and all I do is take one slave, the video bridge and my Genie with it. I have duplicate remote controls for the TVs in my RV. Takes some time to get the cabling correct to use either antenna, but it was worth the effort to me.