I have a Manners T5 in GAP camo, inletted for CTR barrel and factory bottom metal. The barrel inlet could be easily opened up. LOP 13.5" IIRC. $600 TYD. Let me know if that interests you.
For a very lightweight and compact option, I use those cheap silver space blankets to put meat on. They're great to keep in a kill kit, but they wouldn't do for shelter, though.
Before totally giving up on the barrel, you might want to try trimming a few pieces of brass shorter than you normally would and then loading them up. If the resulting rounds don't have pressure issues, it probably means that the chamber in this rifle has a short neck - the necks of standard...
For someone who hasn't hunted in the cold, I think you've made some pretty decent choices. I like the Axis jacket and pants for an outer layer, and the Peloton 240 is versatile.
As others have mentioned, I'd change out the 145's to 97's, though. Also, I'd sell off the Super Down Ultra's and...
Sounds like Kuiu has a fan or two at your local distribution center. I hope that you're ordering the correct size and camo pattern for those guys! :ROFLMAO:
Axis jacket
Kenai no hood and with hood
Peloton 240 no hood and with hood
Peloton 200
Mix and match. I generally dislike hoods, so I try to avoid wearing them if possible.