Greetings!
oooooooh… A “Wide One” Chevy, now that’s a rare beast. Most of the “Wide One’s” were Dodges… Or maybe it’s from a different company.
Is the interior intact, or ???
Since you’re working the hottest parts of the day, that’s a huge plus. You should be able to keep your goal zero charged at work, and possibly while driving via the cigarette lighter outlet.
If overnight heat is a problem, they have cooling blankets available on Amazon. Mine are USB powered, and provide both heating or cooling, while using very little power. They have non powered ones as well, and the cooling blankets work very well.
Amazon also has a wide variety of cooling clothing, towels, wraps, & more. Just dampen them and they can keep you cool for hours.
Rechargeable USB fans are also good, and they can be found on Amazon for cheap too. Walmart sometimes has them too. Misting fans can be awesome as well, and can chill you to the bones.
Since I live & work from inside my rig, I use either a swamp cooler, or a Peltier heat pump to keep my whole rig comfortable 24/7. Both are liquid candle powered instead of electric/battery.
I have a 3-way RV style fridge/freezer that I bought used for $50. I converted mine to run using a cooking oil liquid candle instead of propane. This allows me an electric/battery powered free fridge/freezer. Conserving power is easier than creating more power.
Living in a van/RV can be quite enjoyable once you get everything figured out. Bee careful not to get sucked into making stupid choices at the suggestions of promoters. Cheap, simple, & easy for the win.
Cheers!
"A wise man learns from both the successes & failures of others." ~ Off Grid