We postponed our trek due to physical and financial reasons, but hope to go next summer. In the meantime, here is some info people might find interesting:
I bought a book called "Another Fork in the Trail", which is a collection of backpacking recipes to be prepared and dehydrated ahead of time. The recipes were fun to cook and dehydrate with my cycling buddy, but for the most part they are really time consuming. My family recently tried one of the resulting meals on a camping trip and rated it only a 3 out of 4 stars. The rating is not high enough to warrant the prep time. Some of the recipes could be made more quickly by using canned ingredients, such as canned sweet potatoes.