Ground tent is not an option, I won't feel safe, I will be in the middle of nowhere, on top of mountains with wind and rain, or deep in forests. I prefer hard walls around me - or soft walls but elevated.

A trailer, like the runaway, would be good but it will stop me to go many places that i plan to go - up the mountains, tight trails, etc. I don't feel very good about driving a trailer, not even on regular roads.

I am not sold to RTTs but if I can make it work this would be a nice compact 4WD mobile that will get me anywhere I want to go. Plus give me a lot of storage space inside the 4runner, with rear seats removed.

What about weight ? This WILL exceed the manufacturer weight limit for the roof rails, and in case of accident, this will turn against me.
I don't see any weight concerns in the many videos I've watched ...

I am looking at RTTs like the Alu-Cab, the Bush Co. Alpha. I need a heavy duty (as in, durable and reliable), I don't want any tent drama in my travels. Both are around 200 lbs.