This is a great idea for a hub, and I plan to do one -- thanks for the suggestion. I can't write it up yet, since I haven't finished crunching the numbers on what my trip ended up running (vs. my initial projections, which I already know were way off in certain regards). I know that it wasn't as easy to find cheap hotels as I thought it would be, but we made up for that by camping at some destinations. I also know that we ended up driving about 2,000 more miles than my initial projection, so my gas budget was off. Once I look at everything more closely, I'll be able to write up a list of tips based on the things I did right and the things I did wrong.
Thanks again for reading!