if you want this as something that will last for generations to come and to be handed down in the family over time (hopefully a long time) do it right once and enjoy. as mentioned wind and snow and the combination of the two along with the deep frost does present some challenges but they can be accommodated. when designing for wind, the devil is in the details if you will. the load paths and connections have to be done correct or while it may look impressive, it will be a waste of time and money. look through a Simpson catalog for ideas on proper wind design and how the connections required to make it all work including the hold down details from roof to foundation. another item i would suggest is when you place your roof trusses i would go with half of them as a "Room in attic" truss and the other half can be a scissors truss for a vaulted ceiling over the other half. the room in attic type truss will give you a loft area for either sleeping or storage with not much more addition work than erecting the trusses you would be putting up anyway. i did this for a buddy of mine for a cabin on his property and he was most pleased with the affordability of the design and results. i am sure there are tons of ready made plans out there that will give you what you are looking for. also since this is not going to be a huge cabin, just go with 2x6's as the wall framing for the extra insulation properties and strength for the snow loads on the roof. it really will make a difference in the performance.
Not my cabin, but I love the idea of a vaulted ceiling and loft for a smaller home. You can do some much with that area. If there are school age grandkids involved, they love loft areas to get away from the "old folks".
