'pro-bar' is a good brand of energy bar for max-calories in a small package. lots of fat from nuts and close to 400 calories.
I carry a small waterproof flashlight,waterproof matches,duct tape, foil bivy sack, smoke and meteor flares. In my pfd I have a radio, compass, knife, a couple of bars, hydration bladder, sunscreen stick.
Sounds like a great trip. The Brooks is a wild place. I don't anyone who has been there and NOT seen multiple bears and wolves and the storms are legendary in their ferocity and speed.