lownslow79 wrote:...Here is my 35lb pack that I would have with me in my plane: MSR Whisperlite multi-fuel stove, MSR sweetwater mirco water filtration pump,Nageline bottle's,Gregory pack, western mountainering 3-season down sleeping bag, a lightweight breathable fabric rain jacket, a two person, three season backpacking tent or bi-vy hammock....
Those MSR stoves you are talking about are cool they'll burn any type of fuel. I may take forever to cook anything because it burns so low. When I go backpacking I use a Coleman Powermax. It's like a jet engine at any elevation. I've used it at 8000ft. and sea level burns the same and it's just as light as that MSR. Also I don't know if you've used the sweat water water pump. I seems to fall apart with me and I am all ways trying to hold the hose in the bottle because it like to fall out. I would suggest the MSR MiniWorks EX, thats what I have and it's great. Very simple design and the best part it screws on to a nalgene bottle so you don't lose a drop of what you are pumping.
I also have a REI half-dome, two person, light, works great. You can't go wrong with a hammock light and super comfortable. Also "...lightweight breathable fabric rain jacket..." think Gore-Tex it's well worth the money. I have a very light one I got at cabela's.
I don't have a backcountry plane yet but I think I would take most of my backpacking gear up too, just for all the reasons you were saying.
Just my $0.02.