Good so far...consider adding another pair of socks, gloves that can fit inside the mittens (heavier than liners, though), a sheath knife suitable for batoning, and a compact folding saw or pocket chainsaw. A billy or cookpot, even if you're not planning on being out for long. Just something to heat water in.

If you have the room, leather gloves or flight gloves - not for insulation, but for working around a fire (wool would be fine if you go that route w/ the mittens).

Somethig to keep in mind is that if a survivor in bush Alaska makes it through the first 24 hours, they're probably going to make it long enough to see SAR, statistically speaking. You've got a good setup.

Just checked weather in Bethel - 17 degrees F with a 28 mph wind...a neck gaiter may be easier to manage than a scarf. In any regard, dress accordingly (like I need to tell a guy in Detroit that).