How did you get your GG Vapor Trail to 24oz? Mine is 32oz.
I assume you are using the Prolite 3 short for comfort and are taking the blue pad for insulation during the colder sections of the trip? That would work. I use an insulated air mattress bcause I find it a simpler or more comfortable system for me (it's been down to 20F for me, lower when wearing warmer clothing).
If you run warm , then arc specialist would most likely work. Especially with the micro puff vest to give you a boast on especially cold night. I use the lighter Ghost and thermwrap vest in the temps you are likely to experience and have been fine… but I run warm. I would recommend the Arc Alpinist to most people. One thing you are missing though is a mega warm hat. If it's 10F a generic beanie + quilt will not be enough. You will want a down or high loft synthetic hat or balaclava.
On the shelter front… on the AT I would want some sort of bug protection. The DWR bivy would work. There are lots of people here who like the combination of a DWR bivy + flat tarp. I did a bivy + poncho/tarp for a couple of years but I didn't like it. I like more protected space than a small tarp provided and found the bivy more confining than I liked. My solution was to use the combination of a gg spinnshelter 11oz and an A16 bug bivy 6oz. The A16 is free standing so it's easy to use in AT shelters.
Cooking looks fine. I have made different choices, but yous are quite reasonable if you are comfortable with the performance of the Vargo stove. It's not as efficient as some of the other alcohol stoves on the market… but it is more durable.
If it was me, I would do aqua mira for water treatment because I have had bad luck with filters clogging at the wrong time and cause chemicals are smaller / lighter.
In misc I would add a watch.
OR sun hat is fine… I prefer Sunday Afternoon hats.
For camera, any of the Canon IXUS models are decent if you are optimizing for small and light. Decent quality pictures in a small and light package. The only downside is that it uses rechargable batteries. I would most likely choice the A720IS even though it's larger / heavier for a true hike cause you can swap the batteires. If you really care about quality images there is nothing in a light package. The best options would be a rangefinder that takes a Leica lens mount or one of the more compact DSLR with appropriate lens.
For hygiene I would add a comb if you hair goes wild
For first aid I would add a small single use superglue
I sometimes have problems with chaffing. On an extended trip I would want to address this as soon as there were any symptoms so I would bring a small contain with udder balm
Didn't see any lip balm
TP / wipes / whatever. Not the most environmentally friendly, but on extended trips without frequent showers I like using cutdown moist baby wipes.
clothing looks reasonable. If it was me I wouldn't take the polartec bids but I would bring a mid-weight base top and maybe tights during the coldest sections of the hike. I might also consider booties and insulation mittens for sleeping depends depending on how warm my quilt was an the low temps I was expecting.