3day Max New England

-Nix the NeoAir. A 3/4 Z-light and your backpack will be fine for most summer and fall.

-Nix the SP dish. Eat out of your pot.

– I would argue that 0.9L is a lot of pot just for boiling water.
-Do you need 3L of water capacity?
-nix the sponge
-what is the foil for? nix.
-nix the measuring cup. if this is for alcohol, then mark the water bottle.
-Nix the S&P.
-nix the wide mouth
-nix the squirt top

-Nix the medical tape. you have Gorrila tape.
-Repackage your hand sanitizer into 1oz bottles sold at REI etc.
-Nix the TP.
-Nix the multi-tool. Use a razor-blade.

-Your rain gear is twice as heavy as some other options on the market.
-Consider switching the extra socks for something like dress or ankle socks. Don't forget, you are only going for a night or two.

-Wouldn't bring the grill, saw or packtowel, but would consider the fleece in the fall.

-I don't see any sunscreen or gloves listed.

Hey,
If your going to be in the Whites would ditch the saw and grill, fires are generally not permitted at designated campsites up there. Neoair is probably not a bad idea if staying on platforms or compacted tent sites.
Would probably ditch the fleece and rainpants.
Would recommend liner gloves also.

Have a great trip
Jim