Now the route is maturing. Thanks to my tireless PA Vicky, segments of route are being harvested from Everytrail.com, Bikemap.net and Gpsies.com. These are great resources for any epic journey. Use them.
Also, have a look at these people: http://www.transandalus.org/ They have done a wonderful job of mapping out a great route around the Sierra Nevada. I reckon I can use some of this on my way east through the Sierra – thanks!