I'm lucky to live nearby, so I scouted the course out a bit. (Actually, I've scouted twice - I hope I'm not freaking them out!) I didn't try to think of everything... just the ideas that I thought I might pursue. So, here is my flickr set of photos showing some details not visible from the satellite photo.
I worry that the East and West sides might be too narrow for gps navigation alone, but I could be wrong. I didn't measure the exact width, but it's slightly wider than a normal car lane.