My wife and I have a rooftop tent, and we like it a lot. There are some disadvantages, but the advantages are pretty good.
--One of the main advantages it is easy to use normal bedding. We use sheets and a down comforter. I sleep way better that way than in a sleeping bag.
--it comes with a 4" foam pad, which is sufficient for us, but some people use inflatables on top that.
--The ground is never lumpy, because you aren't on the ground. You may have to level the vehicle, however (we use traction boards).
--If you are doing dispersed camping, you only need enough space for the vehicle. And you don't need to find a good spot for the tent.
--Deployment is faster than easier than a regular tent, and it can be done by one person.
There are some downsides too, but right now my wife is staying at her mother's and sleeping in the tent because it is more comfortable than a mattress on the floor in the house. The top of the tent also has plenty of room for solar panels, which I don't use but plenty of people do and might be a good fit for your application.
Some rando camping thoughts in no order: I've thought about going electric and the induction burner, but then you need the Jackery, etc. So I'm sticking with propane for now. A regular two burner Coleman type totally gets the job done. Great stove. For camping at concerts and such I have big two burner Campchef (I like to cook and like to feed people) but that is way over kill in most cases. Anyway, I use refillable 1 lb canisters like this:
https://flameking.com/product/flmkng164lp/They are about $30. It takes about seven or eight refills before you break even over using those shitty disposable Coleman tanks. Yes, some people refill them but that's stupid.
For coffee, I use a moka pot (just as I do at home). Works great.
A collapsible fabric bowl for washing stuff is invaluable.
I like having backups for my backups. I always have several ways to start fire, same with can openers (P-38s cost less than a buck), and utility knives. I never want to be in a position where I forgot something or something critical broke and I'm stuck.
Learning to tie knots has been hugely beneficial for me. I need to refresh occasionally (good to do while camping!), but very handy.
Costco occasionally sells a rotomolded cooler (Coho brand) that is a carbon copy of a Yeti, but at about a third the price. Sometimes they go on sale. With good cooler management, I easily keep food as cold as it needs to be for five days without adding ice. That eliminates the need (for me anyway) of a vehicle powered refrigerator.
Speaking of Costco, Ecoflow is a Costco Next partner, and I've even seen Ecoflow stuff in Costco occasionally. So definitely check there. They sometimes go on sale as well.
Yep, we did this too; easy to download when you get to a campsite after dark. We had one "tool" box, one "kitchen" box, and one "lake" box.
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- Road flares - instant camp fire, even with damp wood.
We have the "Kitchen Box" and everything else goes in the "Shit Box."
Re: Road flares. I grew up going on hunting and fishing trips with my dad and his friends and they commonly used road flares to start fires. If it is cold and raining, hell yeah I'm using the flare. It is a good idea to have some flares anyway. But you can make homemade firestarters yourself for a fraction of the cost and they work great. My dad really hammered upon me that in the outdoors you must be able to make a fire in any condition at all times. So a firestarter is a life safety item.
The Mustachian take is you can easily make firestarters for dirt cheap. There are a number of ways to do it, but in nutshell you simply dip cotton balls or cotton pads into a pot of melted paraffin and maybe some lighter fluid. The balls will ignite easily, even if they are wet.