You'll have to decide what works for you but if it were me:
I'd cut the zrest down to 6 panels — probably bring it down to 6 oz or so.
I'd also go all scissor/knife happy on the pinnacle. I'm sure there is 6 or 8 oz of marketing BS stored in there. Pretty sure when I saw Skurka speak he cut out all of the back panel padding for starters.
3L is probably all you need. Although the water situation this year compared to last year will be night and day — much less snow this year.
I'd leave the nanopuff at home. Rain jacket should be plenty when you're moving and if you're stopped use wrap up in your sleeping bag.
On a personal note — Smartwool socks suck. I've never seen a pair last more than 250 miles before the wool has rubbed out of 'wear' areas.
I'd add some super glue and roll up several feet of duct tape. Great gear repair and first aid combo.
Also, your camera battery charger (or extra battery) is missing.