Sounds like you’re designing a custom home, lol.
You want a bumper pull that pulls the best and has the most open floor plan, get a toyhauler, with combo garage/living space, not a separate garage.
If you have a 5ver, you have the truck to tow it. No lack of tongue weight and minimal weight aft of the axles, so pulls straight as an arrow without any sway control.
And the added bonus is you gain a porch/deck and a screen wall at the back to really open up the camper during nice weather.
The other added bonus is the frame and axles are overbuilt compared to a similar size TT.