In other words, your behind may burst into flames if you ride too much too soon.

My contribution: You do not state how much time you want to take to do the entire trip, if relevant to you. With 6 months training time you can be prepared for some high daily mileages if that is your goal. Or you can just ride until want to stop each day.

As a new tourer, last Summer I started with 35 miles or so daily before the agony set in. By trips end, 40 days later, I was doing 70+ miles daily. Fully loaded.