First off for cheap you can get a lexan spoon or spork and save some weight. Mine weighs 0.35oz and cost me $0.75 in 2005.
I don’t think a 4oz mummy liner will add any significant warmth although with only a 35* rated bag I can see why you need all you can get. You already are sleeping in long underwear for some warmth and to keep your bag clean.
For where you and I hike, I wouldn’t ditch the pack cover, but I would replace that one to save a few ounces. If you can sew you can make your own for cheap, but also check out the ones from Mountain Laurel Designs, Gossamer Gear and Z-Packs, they would more than cut that weight in half. Personally I use a pack liner and cover because it rains so much here.
Replace the Camelback with a platypus or Gatoraide bottles. What kind of water treatment are you using?
That is super heavy for a pillow. If you can’t rig one up with your sleeping bag stuff sack, raingear, etc, then I’d get the KookaBay one.
You could trade in your canister stove and canister for a Caldera Cone.
For some more expensive options you could replace your rain jacket with a Marmot Essence (6.4oz in M) that is on clearance at REI or for the cheap route you could go with a Dri Ducks jacket (5.1oz) if you only use it for on trail use.
You could replace your pack with a Gossamer Gear Gorilla or Mariposa Plus, or a ULA Circuit or Ohm and save some weight.
Do you not wear rain pants at all? It rains a lot in Georgia/Tennessee/North Carolina
Also I bet you could save some weight with the Misc Small Items. You would be surprised how much weight is in the little stuff.