I found my extended Safari a bit on the small side. Then again, I was over packed.
I stored my entertainment supplies in the back near the sub. I'd setup my PC on my bed during the day and move it back when I went to bed.
Found out turning on Windows power saving options and lowering the brightness would increase the battery life drastically.
Spent a lot of time walking around eating wild berries during the summer. Read a lot of Clive Cussler, too.
Once November came around I started using a heated blanket before I moved back into a rental house.
AC Power
>Big 3 upgrade up front for electrical charging
>220AH auxiliary deep cycle marine battery
>1000w continuous invertor, 1800w peak
>2gauge wire to smart isolator, to aux battery
>Used an electric blanket for cold nights - 22-30f
>Used a small 800w element burner to heat the inside of the van in the mornings to get out of bed, wanted a little buddy heater but those were out of my price range, plus storage size
Food
>Blender
>Powder milk
>Instant oats, not steel cut or old fashioned
>Bananas
>Protein powder
>Water; had 10+ gallons I hauled around everywhere
>Iirc 1,300calories, ridiculous carbs, 100g+ in protein, per meal, twice a day
>Multivitamins and pseudoephedrine + caffeine
>Wild berries; blueberries, blackberries, strawberries
>Canned goods + ramen heated over a fire for nights I felt like eating something delicious
Probably pick up fishing this summer for meat. Considered a small games license for squirrels and rabbits.
Bed
>2" longer than I am
>18" wide at the feet, locking hinges up front held all my containers shut while driving and extended to 38" when opened for sleeping
>Reflection things for privacy + heat reflection; these things made a HUGE difference in temperature inside the van
>Blackout curtains
>Small DC fans from old PCS for airflow
Rainy days are absolute hell in a van. The humidity can ruin a good day.
I never camped in town.