I would suggest you get two or three sets of Lynx Levelers, a set of good tire chocks, a Rhino drain hose and some good 10' sections of fresh water hose. That will get you going. Then you can just settle in, run to the store and grab what you need. Obviously, you will need toiletries, pots, pans, plastic ware, utensils, towels and such. Beyond that is mostly personal camping style.
2013 Jeep Grand Cherokee
2013 Coachmen Freedom Express 233RBS
Prior: Jayco Pop Up, Shasta Bunkhouse, Rockwood Pop Up