As Moho owners of many decades, I always give the same advice.
Live in the caravan/Moho/camper on your driveway for 24hrs as this is the only way you will get to know how everything works and find out what you have forgotten.
Most pop off on an "adventure" and spend the first evening all over the various FB groups asking how this & that work or moaning that they have forgotten a tin opener, corkscrew, matches, torch, batteries, charging leads, pillows, milk, headache tablets, loo roll, sugar, teddy bear etc etc.
Another (recent) favourite is people taking along all sorts of "essential stuff" (kettle, toaster, mains TV, air frier, coffee maker, hair straighteners etc) which they expect to work off the mains sockets only to find that the EHU is limited to 6A or if they are "wild camping"/pub carpark, they have no EHU and expect the mains sockets to magically work off the battery.