I do see a potential for one in the gear list though.
The Nanutuk quilt and small pad. I don't use a quilt so I cannot say for sure, but I believe you want a longer pad. A thinner pad, albiet a bit bulkier, will work at about the same weight. I think a 3/4 length or full length pad would work better, example: the NightLites are listed at about $35USD, not bad cost wise. Using a quilt, pack and small neoair? Too many points of draught leakage IMHO. I think the "thin" or old style Nightlites are still available at GG. They weigh about 6oz and have similar R values as a NeoAir.
A Lighter pack? Well, the lighter packs at 35L are surely possible. But, my thought is dropping from a 47L pack to a lighter and smaller pack "might" hurt. If you are in any way not quite ready with the rest of your gear, you will find yourself spending large ammounts of cash for smaller stuff to make it fit. Anyway, the Gossamer Gear Murmur at ~8oz does fit the bill. I have NOT checked it out, yet...
But, your GEAR seems fine. A down sweater is lacking for sleeping & insurance. And I would carry two pair of socks & wearing one, not just one extra. Socks may take a couple days to dry out after washing them out But, I use heavier socks than normal, you may be fine.
Added: I opened the package from Gossamer Gear, but forgot I owed you a post. My initial impression is that the pack is much more durable than it was. The 2012 pack at 8oz (a bit more) is much better built. The seaming was as good or better than than any pack I have. The inner seams were even bias taped to make them less susiptable to wear. WOW! At about 35L it is probably among the best performer seen so far. I have no doubt that I could overload it with food on longer trips.