Not recent, but we drove from Tok to Chicken to Dawson City via Top-of-the-World highway last year. The American end of the highway is all gravel, narrow most of the way, and depending on when the road is graded it is either full of pot-holes or mostly smooth_and that depends on the amount of rain and your timing. We drove the "highway" just to say we did, I would never do it again.
The paved highway South from Dawson City is comparable to some state highways in the lower 48. Use printed road maps, DO NOT depend on a GPS for directions here.
We had an 7 year old 5er then, if we had a new MH I would not attempt to go through Chicken, the road is simply too bad/rough. While we were there we saw 2 motorhomes that had gone over the side of the mountain_ frightening sight, although everyone survived.
If you decide to go this route, keep in mind the shoulders are verrry soft and deep. If you get a steer wheel into the berm, you will go over the side.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"