Advice for planning a 30 day Cross Country Tour?

Hey, I just wanted to reach out to the more experienced providers for some advice. I want to possibly ride out to California at some point and then make my way over to the east coast and if possible, visit a small town in Delaware. So I'm wondering what the best cities to add to the itinerary might be, as well as other ad sites I may want to use? Also, how well do Eccie and P411 do in other areas outside of Texas? I was planning to go on or around the 15th of this month and have already been fishing in other areas to see if I might be able to make it happen.