Will just second the tent and pad being the most obvious targets for quick weight reduction. Should be able to cut shelter weight in half and pad/mattress by two-thirds. The bag is tougher, if only because ruling out mummy bags slashes the choices. A down quilt, if acceptable, would half that weight and slash bulk to the point you can have a much smaller backpack. The good news: at 2 pounds your bag isn't a big offender.

Camp kitchen can be simplified/lightened a lot. A home-made alcy burner, lightweight pot and cup can save a couple pounds.

Don't do everything in one week! eek

Cheers,
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--Rick