you said this was the colder shoulder seasons.
So why take the water filter? Often freezing is bad for them and boiling is effective if fuel consuming.
Tent, fly, poles, well you could go lighter but ok.
Ditch the gnd cloth
ditch the packliner, the second water bottle and why not use a lighter bottle?
Ditch the water bottle hose, spare underwear,compass, knife, soap, whistle and paracord.
Besides that, what kind of stove?
And rain pants/bibs sould be added.
Jim
He said be brutal...