Off to a good start here, Brendon ... and Jack. You remember we talked about this a while back. building the site publicity/blog around a map is "tailor-made" for an event like this which involves covering ground. Even if GPSA tracking the run doesn't come to pass 9and I still think this is a great opportunity for a "Where's Brendon", ala
http://www.timhibbard.com/wherestim/
someone can update your position daily with a manual pin in the map. It will work great for publicity/action I think and, as you point out, some of the best things in life are free. call on me if I can help.