Do you need the 85L capacity that Primero holds-- if you do, then something tells me that you are looking to shave pounds and not ounces.

-The pack alone weighs 5Lbs 5.oz. A smaller lighter pack will save you 2lbs+
-NF Snowshoe. I think this is a zero degree bag and if so then it is just under 4lbs if I recall. Overkill and heavy. Look at a lighter, cooler bag which will be more suited to your three-season needs and save 2Lbs or so.
-Pad, you could cut down or use a torso length pad. Save 9oz.
-Bowels, cups, spoons and crap like that-- sounds like you are bringing the entire kitchen-- pair it down to a pot and spoon, you will be fine.

-LW lantern??

If I were you, my next purchase would be an ounce scale. Then I would weigh and list every item and then come back and post your complete gear list so that we can really help.