Good questions and comments from 74 and Mountain biker.
I travel five states for work. Have friend network there in all states that have resources and we have established that if I’m ever stranded, I’m welcomed for the duration. Perhaps you might have A) family, or B) old friends you could get re-connected with on your route…? Maybe some allies where you could stash some items n supplies… Or cache them along your route. That is a whole other facet to prepping but worth the time if your travel.
If you end up propositioning things, read the book Patriots, by James Wesley Rawles and check out chapter 9, titled Skanks Mare.
Some good ideas for you there!