Ended up heading up to Vail to do Mill Creek Road. Rated as a 3/4 on Traildamage (http://www.traildamage.com/trails/index.php?id=200
Wasn't too hard, though there were a couple spots where I scraped but those probably could have been avoided if I would have taken a different line/angle. Definitely nothing too much for a stock WK2 on 20's though. There are some bumps in which you would have to have a decent amount of clearance as to not get stuck (high-side is the term, maybe?).
Last one is at 11,387 feet (per my Nav screen).
EDIT: The pictures came out a little blurrier than expected. Probably as a result of the "brightening" app that I used as some of these pics were a bit dark.