Great plans, Bill. I'll look forward to reading your book about your hike!
Random thoughts as I scan your list:
Hooded vest !! Great to sleep in.
Thin cap. long underwear to hike in, expedition weight for camp and pajama bottoms. Why the "tights"?
Insulated cahps and bottoms? Rainpants over expedition underwear should be warm enough.
Instead of a poncho with no sleeves, check out the packa. It is vented with underarm zippers, yet long enough to provide gread wind protection for warmth.
Hat: consider felt peruvian style with the ear flaps, even with the ties under the chin to keep the hat on while you sleep. Hats always slip off my head in the night and balacavas bug me!
Yes, sun glasses for snow glare!!
wear liner gloves all the time, day and night.
You do need water treatment. Filters are unreliable in freezing temps.
Use lithium batteries. Better in the cold.
Go with aluminum Kathoolas. You will be carrying them a lot, so keep it light!
Warmlite no-sweat sweatshirt is a great piece of gear. Wear it over a t-shirt, hike in 0 degree weather, no sweat!
Northern Lites are great, but the rubber strap kept slipping off the toe of the boot. Easy to replace with webbing. Check out some photos here: (Copy into your address bar)