Need to lose about 7-8#
start off with the Tent/shelter, bag and pack, plus pad. I will give you my thoughts and you can price them from there.
If you add all this stuff up below including opt #1 for raingear/shelter it saves you about 8.5#
A new sleeping bag and backpack are going to be the most expensive. Everything else is not that bad.
A down bag will save you some weight, but very expensive.
If you are like me you prefer synthetic full bags.
Quilt is an option to save weight.
A montbell UL #2 25d F down hugger is expensive weighs 28oz vs 54oz
New Them-a-rest short length 12oz vs 38oz
A full length 3/8 blue pad weighs 4oz
New backpack, should be able to chop 32 oz or more off that easily depending on if you can live with no frame, sheet frame etc.
Option #1 on the raingear –
Get a campmor extended poncho/tarp 9.5 oz vs 20+12.5+11+5
IE lose the other rain gear and the pack cover or make a cuben multiuse pack cover.
Gutter nails or titanium stakes 3 oz vs 6 oz
Get a el cheapo vinyl raincoat for wet setup 2 oz
Option #2 on rain gear –
Lighter tarp – 12 oz+3 vs 20
Froggtogs – jacket and pants 12.5oz vs 23.5 and cheap
Carry some spare duct tape and use this as an extra layer.
I use a heinken can pot, IE cook in a bag 1 oz vs 9 oz
How about a spork, lighter etc etc etc
Miscellaneous
Cell Phone in pocket less 4
Aqua Mira is not fast enough for me
How about a med and emergency kit.