http://www.husqvarna.com/us/products/cha...-e-series/
As a small holder I have a couple of chain saws on hand for general purpose work and actually consider my fuel stocks being saved for use in my power tools rather than to tool around in an automobile. Fuel for the saws, fuel for the tiller, fuel for the tractor. What sits in the tanks of the vehicles would keep me going for a couple of years.
I once attempted to keep my family warm using a cross cut saw and gave up almost instantly since the fires were consuming more than I had hours in the day to cut wood.
The chain saw cut that to 4 days work supplying a winter of fuel.
I have built cabins by hand before, but only when accompanied by a hand full of friends. We could put up a 10'x12' cabin in a weekend, stone pillars to roof using only axes and hand tools.
Alone, I would be hard pressed to get the logs up on the third run, set the rafters and be constantly climbing up and down the structure.
Which is another reason I own the caravan. Call me crazy but I'll bet there would be an abandoned caravan or trailer somewhere within dragging distance of your imaginary mountain top in you imaginary world where no one cares if you are building a cabin on their property.