Here’s what I’ve settled on for now:
Prana Zion pants (the most comfy pants I own)
First lite merino base bottoms
Silkweight long sleeve base top (move moisture)
Kuiu Peleton 240 hoody (I wear this all the time. My wife is probably tired of it)
Arc’teryx Atom lt (Amazon sale, previous year model)
Kifaru LPP
Light rain jacket (it’s a low end Kuiu model they don’t make anymore.)
Leather work gloves
Some Cabelas heavy mittens that are awesome
Carhartt beanie
Costco wool socks x2 (or the wigwam off Amazon)
Salomon Quest 4D with Superfeet insoles (I wear them all winter)
The key is, everything is just my clothes, not only for hunting. Cutting wood, shoveling driveway, whatever. That system covers archery through 4th rifle in CO. I’ve hiked when it’s warmer and camped down to 0deg. While certainly not the cheapest, it’s a fraction the cost of buying all Sitka or other hunting brands, I am amortizing the costs across my regular clothes and I’m not sacrificing anything in performance, weight, or bulk when I am in the mtns.
Pick the layers you want in your system and then be a patient, diligent shopper.