Roman, Here's my insights...
You should have a base weight UNDER 10 pounds. This is an easy target, but it takes some dedication. There is very little NEW that needs to be purchased, it's mostly just leaving ALL un-needed stuff behind.
1) You could ditch a bunch of the stuff sacks. I like using THREE for organizing cook kit, food and toiletries. And, the weights make it obvious that these are "traditional" nylon. THere are MUCH lighter alternatives. I'll add that I have done LONG trips (30 days) with ZERO stuff sacks, and it was fine. That said, I now use 3 as noted above, these are very light and total less than 1 oz..
2) The backpack itself (37 oz) is pretty big by lightweight standards. There are LOTS of high quality packs in the 16 oz range.
3) Where will you be camping? How cold will it be? You list a combo of a 66 oz tent AND a 39 oz sleeping bag. WOW - That's a LOT. If you have a tent, you should go with something MUCH lighter to sleep in. Wear all your clothes.
4) The MSR Titan pot weighs 4.8 oz? How big is it? Are you SOLO camping? If so, just take a mug.
5) Nix the LIGHT MY FIRE steel thingy, and just take a book of matches (the paper kind) as a redundancy to your mini-bic.
6) Why take a SPOT or a GPS? You could leave both of them saving 12 oz! You have a 1 oz compass, why take anything else? (Also - No map is listed in the gear weights)
7) Carabiner? For what? No need.
8) Two headlamps? Just take the E+Lite. I've used that same one on 3 week trips.
9) Nix the trowel. Use a stick.
10) Nix the towels, use a bandana. (I have a bandana cut in half, and I use that for 30 days at a time).
11) You have almost a full POUND slated for a camel-back?!?!? Nix that and take a 2-liter platypus, or a couple of soda bottles. Where are you going to hike? Is there a lot of available water?
12) Nix the water filter and take either chlorine drops, or iodine tabs. Repackage any drops in a smaller (BPL mini-dropper) bottle.