I may have stumbled on a serious flaw in my plan. My thinking was a 40' converted bus RV would be allowed an aero length exemption with a Fla 'approved device, is yet TBD.
However, I've seen many of the great national parks in the US, and now in retirement a leisurely revisit to many of them would be bucket list item for me.
My plans flaw, only approx 7% will allow a vehicle overnight over 40' in length, I am assuming aero devices are NOT exempt in their measurements.
This could be a show stopper.