I would hope the dealer will give you at least a roll or two of toilet paper, some tank treatment chemicals, a water hose, a water pressure device , a sewer donut , and a sewer hose with fittings. Next on your list should be another fresh water hose, a 30/50 or 50/30amp adapter as well as more types as you come across the need. A sewer hose extension, a progressive industries surge protector, TPMS. Most everything else can wait until day two when you have some experience. Good Luck.
04 Allegro 30DA, WH 8.1, Banks, 03 Honda CRV/2012 Jeep Liberty Jet, Brake Buddy Adv Select, 300watts Solar, 7 Group 31 Optima AGMs, 2000watt PSW inverter
"Philippians 4:11-13 KJV"