If you pass through Baltimore MD look us up. We will feed you and offer a room for the night if you want.
Just a suggestion, but...
I understand that everyone's preferences are different, but I have to say that your route looks decidedly unappealing to me. You seem determined to ride through less desirable areas in what is likely to be miserable weather. I would expect something like the Trans America, the Lewis and Clark into the Trans America (as Valygrl suggested), or a self designed route through that part of the country would be much nicer.
When it comes to weather, do not discount how miserable it can be in the Summer in parts of the American south west. I know that last June in the Sierras, I found that bicycling in 115F temps just isn't much fun. I vowed that while I might go back in October, I would never ride in the Mojave in the Summer again. Also Oregon, Montana, and Wyoming are places that I would not want to miss on a coast to coast tour.