I think you got it, Mike. I'm a little squeamish about that weather.
Even if I did decide to get the Lunar Duo, or the rainbow for that matter, I'd still have to seam-seal it, and learn to set it up, make a footprint, blah blah blah. Not to mention having to have it shipped to a remote location in Wyoming, all in a couple of days.
Well, then the gear list is official :-)