I'm planning my NOBO thru hike to start mid March and have been questioning my gear lately given the extreme weather of 2013 and a cold 2014 predicted. I have a very limited budget, less than 250, and want to make some changes to lighten my pack weight but mostly insure my warmth in camp and sleeping-I tend to be cold natured. For my sleep system I tent, have a 20 degree Kelty cosmic down bag, a silk liner and a BA insulated core pad which has generally kept me warm into the 30s. For clothing I have a cap 3 LS half zip top and running tights for hiking, an icebreaker 260 LS top and bottoms for sleep and darn tough socks. I have a heavy sporthill fleece and Rei Revecloud insulating jacket. Also have marmot precip top and bottoms for rain/wind/snow layers. So my question is where is my money best spent. I've considered the Zpack 20 bag and Enlightened Equip Revx quilt. OR... Should I change out the sporthill fleece for a Patagonia R1 and change my REi jacket for a down jacket? Or any other suggestions or ideas are greatly appreciated! Thanks