How wonderful
@WayneG ...I felt a pang of what once was reading your post. I set off from Canterbury Cathedral for Rome having already walked from London in late March 2019.
My advice; be prepared to be very 'flexible' with your route across France...go Your Own Way..it can be an enjoyable challenge each day. With no real set path, get comfortable navigating on the fly.
Most of all accept it for what is & savour!
Any issues which may crop up needing advice, those who have been before you here on the Forum will be happy to help.
@timr is a wealth of info & I'll answer any queries too.
Wishing you the most wonderful journey..there's no other trail like it I know of.
Sempre avanti