Hi Jim, i do appreciate the concern and feedback, and yes to some extent i guess i am concerned with speed and longer distance. If one can find a relatively flat path through the range, and if one is on cross country skis, and not experiencing a lot of white out conditions (it doesn't seem to actually snow that much in that area), i think going at a moderate pace (not near super human Skurka speed), it could get done relatively quickly--maybe around 50 days or so (provided i get my body into really good shape before hand)?
Re: hot tents, wood stoves. Yes, having a hot tent/woodstove set up and having used it, as well as supplementing my house heat with a wood stove in the winter, i'm well aware the work and time involved--a pain the butt and probably much, much more so if you're cold, tired, hungry, and/or stressed. However, there are also ways to maximize that (occasional) warmth, such as setting up IR reflective liners inside your tent.
But i don't think one would need to use it that much, and part of Skurka's problem was that he was constantly using a VBL while active, and so his baselayers etc were constantly getting wet. I've considered just using a partial VBL for sleeping where i have to worry about such wetting out a lot less. I realize that clothes VBL allow one to be more efficient with bringing less insulation, etc, but personally i think dry, dry dry and breathable is more the way to go because of the very issue that Skurka had. (i would still bring VBL clothes as a backup, and in any case use it for hands).
Anyways, about the hot tent and woodstove part, i suppose it's a moot point because it doesn't seem like there is enough woods in the Brooks range system to begin with, and would be pointless bringing. But, i could see it as helpful in some areas of places like N. Minnesota, N. Dakota, N. Montana, etc, and the extra weight would be less of an issue if you have an efficient pulk system. My titanium woodstove is one of the Seek Outside ones, and it's a bit of a pain to set up. With a pulk, i would probably just leave it set up in it's assembled form (well obviously not with the pipe attached!).