Isnt that a jack-up roof rather than a top-tent? Extra standup room inside once like the old VW Vanagon campers.
In my mis-spent youth I was an on/off again motorcycle nomad. I found that after being in one spot just so long I dreamed of traveling, then when traveling I found after about 3mo. I would be camped out in some nice place and be dreaming of 'home basing' it..... I called it 'the grass is always greener syndrome'.
Later on we did a fullsize Ford conversion van that I morphed further into a camper. It wasnt bad, way better than the Ford Aerostar I tried later. That was Ok for me but not for two of us! Even so it didnt really have enough space for 'living', it was a sleeping/storage container and living was best done out of it. A well done fly required. The new-gen tall van would be dandy.
Btw, we also had a camper made from an alum bodied potato chip van. The full size van was my best of the van-campers in terms of over all user friendliness. But iffn ya gotta live in something for any length of time or weather, bigger is always better.
That said, we often found that we would be set up somewhere and comfy, then want to go someplace; that means breaking camp. Do Not leave yer goods unless there is going to be someone trustworthy to keep an eye on.
We have had an Aliner pop-up (no canvas, it has 'hard sides') for 11 years now, it goes up in 30sec. Yes, 30 sec. and step inside. Sure, it takes longer to put down the stabilizer jacks, etc, but to stop walk back, unlatch each side of the top, throw it up and lift the two triangle sides up into the roof and latch (that is done inside) you are in, out of the rain and ready to use for a lunch or nap. Tows and backs up like a dream. We can change tow vehicles or even living units at will by going 'two piece'. If your camper van or motorhome dies mechanically so does your house.
Imo, don't bother with solar electric, do have hd longgg extension cords for when you do have shore power but mostly learn to live on the deep cycle battery(s) led lights and a low elec power lifestyle. Ie, you cant run even a small air conditioner off batteries! But it is nice to have one for when you can plug in.
A lot of places dont allow 'overnight camping' anymore, and campgrounds are the pits, but many places you can set-up/hang out during the day, so 'camp' during the day and travel at night.