Bandana (Generic cotton) --- 1 oz - there is a way to cut this to make it a little lighter, and still use it as a nice neckerchief.
Tyvek Pants --- 2.5 oz - What? Do tell! Are these homemade?
Headsweats Sun Hat --- 2.36 oz - What? Add this to your ITEM'S WORN and watch your pack weight plummet!
Mosquito Head Net --- .68 oz - Put this to use as a stuff sack. THe bugs will be minimal in August anyway.
MLD Bug Bivy --- 4.5 oz - The bugs are minimal (usually) in august, especially at higher elevations. This "might" not be needed.
Various stuff sacks --- 2.94 oz - Be careful here.
Petzl e-Lite --- 0.98 oz - I've used the e+lite for two weeks without a problem. The photon is pretty light, an understandable redundancy.
Other (toiletries, first aid, Aqua mira, maps) --- 9.4 oz ---- Okay - Over half a pound here? THat's a big number, you should scrutinize these items, I KNOW this weight can get lower.