I’ve never hunted that far north, but I’ve heard bugles in NM in the third week of Oct, and bugles in CO in the second week of Oct. I rarely pack a tube though. I’m just not much of a caller. Perhaps if I was an archery hunter.
I don’t debone quarters after doing that on my first elk. I think they cool faster in a game bag on the bone than in a game bag in a round lump of loose meat. However, there are 30-35lbs of bone in the quarters. That is significant. You could drop almost half of that by deboning just the shanks. I just don’t want to debone my shoulders and hams until the meat is both cool, AND out of rigor, and I haven’t had en elk come out of rigor before I was on the road. I would recommend quartering, and hanging the quarters while you make your first trip back to the truck. The cape is 30-35lbs, if it’s legal to take the head before the meat, that’s another 30-40lbs. If you’re mounting it, the head and cape are a full load or close to it, especially if you’re packing your binos/spotter/rifle etc. back to the truck on the first trip. When you get back you can debone the shanks. IF you get past 24hrs and the meat is out of rigor, then by all means debone the quarters if you want. You’ll still have 15lbs-20lbs of bone in the shoulders and hams, so depending on how many loads you’re trying to do it in, that might be worth the effort. My cow last fall got to around 36hrs before it was all back at the truck, but was still stiff as a board.