I'm curious what rating your bag is. Sahara had a few models. Reason I ask is REI's big summer sale is on and they've had a lot of bags on sale.
Are you going on long enough trips to need 16 oz of fuel? I have a 4 oz bottle that weighs .25 oz.
Carhart knit caps are plenty warm and weigh in just under 2 oz.
What do you need a leatherman for? You don't have tent poles to unbend or anything. Get a mini swiss-army knife for $5 and 1 oz.
I don't see anything for hygiene- not that I'm making any judgements :-)
Also, are you going to need any other clothes? Something warmer than a 9 oz fleece?
You can pick up some paracord and a keychain biner super cheap to hang your food. Might be lighter than what you're using for guylines, too.
Where you headed?