Did an undocumented one on my R100R. Went Anchorage/Fairbanks/Delta/Dot Lake. We pretty much rode till our odometers went over the 500 mark, turned around, and returned via the same route. Very unscientific!
Did a real IBA SS1000 and got a cert, a couple years ago on my Road Glide. Went Anchorage/Fairbanks/Delta/Tok/Beaver Creek/Haines Junction/Haines. Really awesome ride! The road from Haines Junction to Haines was fantastic. No traffic, no cops, and the road condition was super.
Definitely plan to do one on the KLR, once I get in some more time in its saddle, and make sure everything is up to snuff mechanically. When I bought it, the rear tire was on backwards! Will take it from Fairbanks to home in Eagle River next week, when I go home for the 4th and take a break. Should be a good shakedown run. Get a feel for fuel and oil consumption, etc....