I am in a similar situation. Our hunt will be in Idaho, in December, archery. With that, we plan to encounter snow, heavy winds and some cooler temps. While I am hiking I plan to be wearing the First Lite chama top, with the KUIU guide jacket, Guide pants with a merino base layer. When we stop to glass I will throw on the spindrift. I will have the guide gloves with an Icebreaker hand muff around my waste (that thing is worth it's weight in gold). Hanwag Alaskans, guide beanie...
We have several options on where to stay or camp, so it will all be dependant on how the hunting is going and how far we hike in from where we park. I would suspect that we spend at least 2 nights out in the hills during the 7-9 day hunt. 0 degree bags, mega tarp with annex and stove.
Last year on our late season archery hunt in Idaho I wore the First Lite llano top, a wool sweater (military issue) and the sitka 90% jacket while hiking, it was pretty cold and windy, even when we stopped to glass I don't remember getting cold, so that worked. For the bottom I wore a merino base layer and the sitka ascent pants. One day I worse the stratus bibs, but they were just a bit too warm with all the hiking. Warm columbia glove on bow hand and a thin glove on my other hand, under armor beanie. Boots were just some danner pronghorns with merino socks. Shitty boots, but they worked.
I am not sure how physical your hunt will be, but we covered a lot of ground each day and it wasn't flat, I found that as long as I wasn't sweating too much due to many layers that I was fine. I would suspect that to be the same this year and I think the KUIU will work just fine for me.