Per the FITech FAQ page:
"Can I mount the Command Center in the rear of my vehicle?
No problem, keep it safe and within the same areas you would mount and vent any aftermarket fuel tank or supply system like a fuel cell."
I'm sure Johnny is better equipped to answer your first question. I know that I have entertained the idea of a truck mount myself. I called the tech line to ask, and they reminded me it was in the FAQ. Lol.