This set of images, especially with the tow vehicle, really solidifies the visual. Given that, I assume your overall height is rendered to compliment the tow vehicle primarily for the purposes of cutting down on wind-shear? Might I suggest adjusting it to be slightly taller? I've owned a tool-bed and had a topper on it for keeping stuff out of the weather. I'm 5'7", and still had to stoop significantly when I was in the bed of the truck, moving/retrieving gear and tools. I HATED THAT! Every time I had to climb in there, I wished it was taller, if only by 6-10 inches. If you have a sleeping platform/bed in there, you will appreciate being able to sit up fully on the bed and NOT have to lean to one side, assuming the bed is as tall as the wheel well to allow for storage under it. Since you are building the shell, and you are putting a shower stall in front of the trailer body, a taller roofline will also make it easier and more comfortable to stand in there. You can increase the approach angle of the nose to still benefit from the wind. You can also use an old trucker's idea and put a scoop on your tow vehicle that also directs airflow upward so the perception of lost mileage is addressed. JMHO.
