Good to know as well. Starting to think of design and figuring out floor plans. Thanks for the input on no insulation on floor. PS I will also be travelling with cat.

No regrets. Andy spent a week living and working in it 24/7 in 90+ degree in a parking lot with no issue, in fact our cat slept on the floor because it was still one of the coolest spots. We both spent a week in sub 10 degrees back in December and we were actually too warm with the diesel heater on low. The other objection we hear all the time is that it cuts down on road noise. That may be the case but almost all of our road noise currently comes from the front doors so I never notice it coming from the floor. Lastly, we don’t have any floor squeak. We’ve heard all the pro floor insulation reasons and still, no regrets! Hope that helps!! Best of luck with your build!