I'm not as prepared or as mobile as you are. I'm old, and basically done carrying my survival on my back very far. At this point my vehicle is part of my survival plan and my stuff is in duffles.
Within one minute of hearing the news I'll know my destination. Local, regional, long.
My brother and I have a place but it's 1500 miles from here. It's defensible and sustainable so my key is to get there. Going there will take 50 gallons of fuel minimum. I don't have to carry big guns there so 2 pistols will get me there. I have a 30 gallon fuel barrel (empty) ready. I know about a gazillion ways to get there so one stop for fuel will be all.
Regionally, I'm headed for the mountains this time of year or a specific valley in the winter. Nice thing here is you won't freeze to death, ever. :)
Locally it'd be a set of abandoned (but sturdy) buildings I know about 50 miles from here. In both those last two cases I'd carry a rifle (.308) a 12 ga pump shotgun and 2 pistols-a 9mm and a .357. Regionally I'd plan on some game to supplement food, locally I'd have enough food with me for two weeks.
The cool thing about thinking about this sort of thing is that in the world we live in there is a real need. Anything can happen, and probably will. It's good to have a location to escape to also, I have many, not owned by me, but I have access to and the means to get there...Having a 4x4 is an essential thing for me as it grants access to places a 2x4, or low-slung car can't go.
Seems like you have some good plans in place...Everyone should.