This is my primary criteria for making CT campable:
A 6.5' sleeping space, 2' tall at ankles and 3' tall at head,
plus a Porta potty space 4.5' tall, not near the sleeper's head.
The CT alone cannot do this. The sleeping space needs a 6" mattress making the clearance 1.5' at the ankles and 2.5 '...
Approaching perfection. Topper from GnarlyDudeLive features 8 feet of walk space after I added a pop top with panoramic fabric unzipping. I also added the side window and the canvas drop floor tail. Range loss 20%?, 25%? Still good enough for me on a tri-motor. The cubes make the CT livable, not...
So, OK, for the moment just thinking about the stock CT. Here is I think the optimum sleeping position, head to the rear about 20-24" thru the mid-gate and into the vault. Front seats moved to max forward. A fairly easy pivot to egress.
I did some math comparing space increase versus aerodynamic drag increase.
The vault has 84 cu. ft.
The Bundu in the lowered position adds 67 cu ft above the vault, an increase of 80%
The Bundu raised adds 175 cu ft. Total above the vault 232 cu ft. Nearly quadrupling the vault's cu ft...