I will be walking soon with my three oldest children and think we will be doing two Caminos...Le Puy/Frances was my original goal however they are young active teenage boys and the Norte is calling them...they want to do the Frances and Norte and they will be the ones who decide.
If we do this we will be doing as you are planning.
Keep in mind you won't be alone at night and during the day you will pass many people but it will honestly be the same coversation over and over again with them.
I passed two or three on the Norte in the past few weeks who were walking it backwards. To each I said something like, "come join us",,,"should we follow you"..."do you know something we don't"..."you're heading the wrong way"...there is no doubt that each heard these same things over and over and over.
With that it was fun to hear them say, "there is another American two hours ahead of you"...and things like that...they were able to tell me where many of my Camino friends were which was really neat...