Wild, my entire plan is just what you started with- on another thread, I listed a bunch of acronyms for my various BOP/BOG/BORV/BOT layers.

So at the end, if I have to bug out, I have a 20 foot van conversion RV (Roadtrek), self contained, with a 5X8 trailer, and about 30 bins/jugs/boxes/buckets. About 13 mpg with the trailer, with my spare fuel intact, I should be able to get about 400-500 miles worst case, all the way to my compound in AZ best case.