How low temp wise do you think i could go with the following?
http://www.montane.co.uk/products/men/insulation/north-star-jacket/238= 200grams of us 800 fill
http://www.westernmountaineering.com/index.cfm?section=products&page=Down%20Garments&cat=Pants&ContentId=78=289grms of 800 fill
Lightweight patagonia upper and lower base
Patagonia R2 jacket
Heavy weight fleece pant
Or Alti mitts
fleece face mask