Closest I've come for MI do it all pant is the Sitka Timberlines. I'll wear them for 40 - 60 degree treestand or still hunting. Warmer than that I'm going with Sitka Ascent. Colder and I'm wearing Ascent in and packing a Sitka Fanatic or Incinerator bib to wear on stand.
I like it. Used it on Kodiak early August and it is very handy with one of the side pouches for my rangefinder. I like the little phone pocket in the back as well.
I like it for active hunting like that but not for stand hunting. My biggest negative is that it's a pain for changing layers...