It is my experience to always have a touring plan just to have a plan of attack. Going at a non-peak time does not mean there will not be large crowds. These things are hard to nail down,so we always have a plan and follow it best we can. Something always comes up and throws you off your schedule, but that usually the best part. It is the unexpected things that make it magical. I would just have a basic plan of attack and follow your gut as you go along. Have a wonderful trip!