Are you on facebook? I just created a 123 mile offroad loop here in Eastern Ky, and I am looking to get a group together very soon to run the route for the first time. I started a group on facebook for the route that has the .kml and .gpx tracks for the loop. I will add you to the group and you can take a look at it.
Anyone that doesnt have facebook and would like a copy of the 200 mile offroad route that I have created for Perry County in Southeastern Ky, here is a copy of the .kml file that you can also convert to .gpx and use in a gps device or app. Send me a PM for info on the route.