Bring a small carabiner to clip your pack on the bear cable. (0.1 oz)
Bring a kitchen garbage bag to put over it while its on the bear cable (0.75 oz)
any mice that climb the cable, will slide off your pack when they get on it, and pack stays dry.
It wont be very cold, even at highest shelters at that time.
the down parka is overkill , a UL down jacket or synth puffy would about right
a fleece is good for sleeping and hiking in in the morning until temp and body warms up.
Forget the sunglasses, not needed.
tent is overkill since wont use. buy a light silnylon tarp. IF dont use it, just return it. And you shouldnt use it.
dont need 2 mini bics. There will be others around if yours fails or gets lost.
I hope your ti spoon doesnt weigh 1 oz, if so you got screwed
2L platy weighs 1.26 oz, not 4
wont need sunscreen
wont need lip balm
wont need deet
ditch the drysak and put ditty stuff in a 0.2 oz quart ziplock and save 3oz.
get a suunto clip compass. 0.17 oz
have fun, great time of year there. At least it is AFTER labor day weekend.