New England winters...and with the timeline...hmmmm
I'd go with a combo of the suggestions above.
Dig a cave into a hillside, go back at least 15 feet.Line cave with straw bales and then plaster over with a cob mixture. Continue out the front of the cave with straw bale construction, cutting locally obtained trees of around 6 inches + in diameter for your supports . You want those supports to be in the ground at least three feet for structural support.Earthbags on the outside, adobe or cob on the inside. Roofing, using 4 to 6 in trees for supports, construct the frame of a yurt like roof with a higher degree of pitch than normally seen in yurts to shed snow efficiently, Use smaller trees, 1 to 2 inches to cross frame across roof frame to provide base for next phase. NOW, make sure when constructing roof, you leave a fire hole, you will need that later. Now, take hale and pull bales into flakes approximately 2 inches thick and cover roof. Cover all this with tarps. Then cover tarps with a minimum of hay flaked 6 inches thick. Cover this layer with tarps. Finish off by duct taking all seams on top tarp and coating tarp with good water resistant coating (such as tar). While tar is still a bit fluid and sticky, cover roof with hay a last time in the traditional thatch configuration. Just looks cooler that way.
Or send me a train ticket and give me a tent on property and let me show you how it's done.

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