Thank you. All the best to you too.
Am I to assume that you are more into a survivalist (ready to leave and live no matter what) thinking, than a prepper (they tend to have sunk their retirement money into land and think the govt will allow them to keep it) even if they are outnumbered one way or the other?
If so, we can PM, mate. Knowledge weighs nothing and we carry as much as we can; everything else can be found - with knowhow.
Yup you live a drive away - but if it goes sideways it is always walking distance. Everything in the UK is walking, given the correct stimulus.
You mentioned Europe, how many times have you sailed across the Channel, in what boat, and in what conditions?
I've done it many times with my Furuno on as I'd hate to get in the way of the massive draw weights that are out there daily - they don't turn let alone stop, if you know what I am typing about here.
If the thing happens then no Gps ... the water may be clearer of the huge stuff, but navy may well be operational.
I've crossed it in heavy fog with both shipping lanes on full schedule. I could not see more than 8 metres of my bow. I may not have liked it, but I did it and I am still here. All on a tiny wind, powered sail boat - I have never used gps as I know how to navigate.
There are fewer people here than there, if you play the number games. Ifr you are what you seem maybe chat and potentially change strategy.
You still have my very best wishes no matter what.