A few thoughts:
If I read your list and post correctly (and I second Mike C!'s suggestion to make list more detailed, both for us and for you), your packed "clothing" weight is very heavy at 7.98#. Leave redundant items behind (extra pants, socks, shirts, underwear, Tevas) and you'll cut that a lot. As others have said, if the down jacket is quality, it's way too warm (and thus heavier than needed). I just got a Montbell Down Inner, ~6.5 oz for $155, but before that used beanie, baselayer, fleece and rainjacket combo and was good to around freezing (I do run warm, though). My pullover fleece weighed ~11 oz, and prob. cost $20--a cheap way to save weight over your current down jacket, until you can get an ideal summer insulation piece. My total packed clothing weight is less than 2#, by way of example. I don't know the CT, but my clothing system works for me hiking summers in mountains of PNW and Idaho.
Your bag could be a lot lighter, but if it were me, and I was trying to shave pounds, I'd get a different pack and stick with the bag for now. Here's my reasoning: A high quality, do-most-anything bag (WM Ultralite, for example) will run $350 or more and weigh ~29 oz. That saves you 13 oz. You could save more weigh with a quilt or summer-weight bag, but that will take experimenting to see if it's right for you, and your trip is coming up soon.
By contrast, you could find a pack with the same volume as your current one (ULA Ohm, for example--I don't own one, but have heard great things), and less than half the weight (~23 oz for Ohm, stripped). Say, $150-175 for a pack, and weight savings of maybe 32 oz--more, if you go frameless.
By leaving stuff behind (esp. clothing), and replacing your pack, you could drop 5-6#, for $200 or less.