Thanks for the suggestions! I'll see if I spot a smaller light on the cheap. This one was an REI Garage Sale find, and I'm not going to spend much money to save 2 oz at this point, but I might pick up a Fenix L1 knock-off from Amazon. The compass has to stay for our side trip to Mt. Ritter, since that's mainly off-trail.
To clarify, the odor proof bag is going to go inside the bear canister as a liner. It's just a small extra measure of protection, and it keeps my pack and other gear from stinking of food. The 450 should be enough space for all our food between resupplies, since we're leaving the trail before the MTR->Whitney stretch.
The Smartwool zip top I'm hiking in is long sleeved, so I should be alright there. I have a 6 oz fleece vest I could add, but I have a feeling that would end up being dead weight. I've used the Uniqlo jacket in temps down to the mid-high 40s or so, I don't hike with a thermometer so it's hard to tell exactly. I figure if I layer that with my merino shirt and a windshirt, by the time I get cold it'll be time to get under the quilt.
Speaking of which, the facemask is a fleecy neoprene thing with holes over the mouth and the bottom of the nose. I only anticipate using it for sleeping. It's totally a luxury item, but my quilt is hoodless and I find my face gets cold even when the rest of me is toasty warm. This keeps the wind off, keeps my nose from going numb, and makes for a nice sound sleep. A buff or balaclava could do the same job, but I find those annoying to breathe through, they're more prone to condensation, and they don't block the wind.