I just wanted to give another big +1 on Erik's atlas. It was incredibly easy to use on my JMT hike in 2011. There were maybe 1 or 2 errors as I recall. The ones that stood out the most were switchbacks after Garnet Lake that were not marked on the map, and a direction change and descent right before Deer Creek that were not reflected in the atlas. I'm unsure if these have been corrected.
Here are some general comments I have.
+1 to trekking poles. My girlfriend and I were 27 and fit when we did the JMT. We still loved our poles, and it makes some water crossings that much easier. It also helped add extra stability to our tent (TT Double Rainbow)
Be sure you are comfortable with such a minimalist shoe. If you are, that's awesome and use what works well for you. Me personally, I would have sore feet on some days (15+mile days) especially since the passes have pretty rocky and rough trails. I was using a trailrunner with a rockplate too. Also, consider very lightweight breathable gaiter like a pair of dirtygirls or levagaiters...I lost a lot of time stoping to pick pebbles and grit out of my shoes.
I'm a bit unsure about the Kumo since it doesn't have an actual hipbelt. If MTR is your last resupply, plan on your pack being at least 10lbs heavier because of the 7 to10 days worth of food. Mine was 30lbs leaving MTR. It's doable, but I can't imagine it being the most comfortable. At least for the first few days.
Each year the JMT is different. Depending on what month you go, it can be bug free and bone dry. We went in September, and got at least 7 days of rain, and some hail and mornings that were around freezing. The mosquitos were fairly bad at times, like take a crap and end up with at least 3 bites on your butt bad. They usually disappeared within a couple of hours after sunset. I would definitely recommend a head net though, and we loved ours from http://www.petersheadnets.com (fellow BPL'er). This past summer was pretty wet as well based on the trip reports I've seen (check out Manfred's JMT trip report from this past season)
Looking at your clothing, I think you can drop the Short sleeve wool top. I brought 1 wool short sleeved shirt, 1 long sleeved patagonia capilene 1, and 1 wool quarter zip long sleeve top. I ended up never using the wool short sleeved shirt and it was mainly used as a pillow case and as a shirt when I was doing my laundry at Red's Meadow and VVR. I found the capilene long sleeve perfect to hike in, even on hot days, and it allowed me to wear less sunscreen. The wool long sleeve was great for layering into at night for sleeping. 2 socks is perfect and allows you to wash 1 while wearing the other. I didn't wear any underwear on my trip, choosing instead to bring two pairs of running shorts with built in liners. I could easily wash one while wearing the other. No chaffing, no problems, and I'd do it again in a heartbeat. I also wore dynamos and loved them! Perfect pants until it gets to be around 80 degrees. Shed rain just fine. Bringing a windshirt was the one thing I wish I had done, so it's good to see that on your list. Consider bringing insulation that isn't as delicate as the ex-light. In the mornings I would wear my BPL cocoon hoody for about an hour or so while hiking until I warmed up...I'm just not sure how the ex-light fabric will manage underneath pack straps (i have no experience with this jacket though).
Also, just food for thought...I used a cat-can alcohol setup with a foil windscreen and titanium pot for the first half of the trip. It worked great. When I got to MTR, I switched it out for a canister stove setup. We took 10 days to get from MTR to Whitney so the weight of an alcohol setup (including fuel) vs a canister setup were more or less the same, but I had the convenience and speed of a canister. Also, consider bringing a food cozy is you are doing boil-in-bag style dinners. It could be as simple as reusing a reflective mountain house mealbag. It'll save you fuel in the end.
True story, I decided to adopt the cat-can instead of my caldera cone at the very last minute after remembering that Andrew Skurka has used the same setup for all his epic trips. I figured if it worked for him and the conditions he faced, then I should be golden. I ran into Skurka during my trip (he was guiding a group on the sierra high route and dropped in on the JMT for a bit). In my excitement, I forgot to ask him to autograph my cat stove :/
Bring a fishing rod! I wish I did.