Interesting you mention the Sienna, because that’s exactly what I’ve been looking at. (I used to live in a Previa, so there was a time, when the Sienna first came out, that I thought it would be the next evolution in my van life. This was before Sprinters existed).
The hybrid Sienna gets 35/36, check. AWD. check. Clearance on the Woodland edition is about 7", on the other models, it’s not that much less. So not great clearance, but I don’t plan to be off-roading or getting to gnarly. but that’s what we all say until we realize the only way to the hot springs is up the mountainside on the bumpy dirt road with the rocks sticking up in the middle of the road. 
The Sienna had incredible range too.
I read that you can’t remove the second row of seats; at least not easily. I’m sure anything can be removed with enough work. But I do have two kids, so I need at least three seats, excluding my wife.
The issue would be the pop top, but it sounds like you think that wouldn’t be an issue. Do you know of anyone or any company that installs, or would install professionally, a pop top in a Sienna with a sunroof?
The California (in Europe and Australia) gets 127 mpg with the hybrid!!! something insane. But doesn’t have all wheel drive. On YouTube, you can type this in and pull up a video: New 2024 Volkswagen California - Next Generation Family Camper Van
Do you know if the Euro Vans sold in the US are much like the California? It is so cool. I’d buy it even if I had to sell a kidney. Not my kidney of course, but someone’s. If the US euro vans are close and get decent gas mileage, I could do that maybe.
Our Warrior, no, it’s just too old. It blew a head gasket and we ended up paying a fortune to repair it, and it blew it again six hours after getting it out of the shop.
The second time, we replaced the gasket and poured in some sealant and drove it from SLC to Newport OR, and it made it. But now we just drive it to local state beach campgrounds near our house.
The roof leaks and we can’t find the leak, and it rains for months here.
I need something smallish, just of rme really, that I can rely on.
And I don’t want to tow. After all those years of living full-time in a van, I want something like that again. I can pull over any time I get tired and sleep in it. Carry my surfboards, have a bathroom onboard, even if it’s a camping potty. a little home on wheels for me, for two week trips, that gets good mileage, AWD is nice, being able to stand up is nice.
Yes, maybe the Sienna.
Feel free to pass on any thoughts and any information about pop top installation.
Cheers,
Phoenix