>>2533437lots of simple things following
-need address to have insurance/mail/taxes/other things to forward/receive? State of South Dakota has literal businesses whose whole purpose is to allow RV/Camper retiree's to get their insurance/bills/mail/packages/medicine/etc routed to them throughout the US while driving everywhere once they sell their homes, buy an RV, and drive away their twilight years....or end up spending everything away at a Casino.
-shower? Large Folding Bucket, small round platform that fits into bucket, small 12v water heater and electric shower head. Fill bucket with water, put 12v heater in, heated water, put electric shower head in said water, step in, put magnetic shower curtains on ceiling and shower with needed filters(basic shower head filter, coffee filter over intake to prevent dirt, shit, etc(don't pee in the shower idiot), inline filter(with sand filter tube to filter soap out)
Shower as long as you have power, dump dirty water later. Collapses into small tote that takes no space, also have bucket for hauling/dumping water
-need power, folding solar panels or install some on your roof, if you have space, get outdoor speaker stand and mount wind generator to it to get that high air currents(top of van best if you have proper connectors) generators and shit take fuel, maintenance, and get stolen, complained about, take up way too much space, and won't give you as much as a well done solar/windmill setup(have 2 separate battery banks so if one shits the bed, you aren't without power)
solar cooker for hot water and food(unless you are feeding many people) gas stoves and shit take lots of propane/butane, but they also double as heating for bad weather