Hi,
Welcome to the forums.
Storage is always at a premium. One folding chair for each camper. I mostly boondock.
Find out what the weight distribution is on the RV.
Try to be a minimalist about what to take along. Once a year have a triage session and other than safety equipment down size what you can.
Is it a 50 amp or a 30 amp service? I would want one extension cord for starters.
I use one of these hoses:
hose on a spool-fabricA lot depends on the camping style. If there are always picnic tables...then you don't need a table.