Quit cooking and showering while going down the road, it's ok to blend margaritas while driving but no playing with fire.
I jest, but we have never had any problems with the shower or pans sliding off the stove. We don't even spend that much time trying to make sure everything is level once on site. If the head of the bed is higher than the foot we're ok.
As far as the fuel capacity, I like to stop and stretch way before 300 miles anyway.
Can't wait to get back on the road, safe travels everyone!