I stumbled on this tiny house kit builder while looking at YouTube a while back. Bungalow in a Box builds panel-frame kits that setup in a day or two. You build the foundation and they deliver the panels to your site ready to lift into place. The video on YouTube shows one being erected in the snow.
Panel-framing is a bit of an unusual wall construction technique. They build up the walls in sections using 2×4 boards but not in the usual way. In fact I’m going to consider doing something similar (now that I’ve stumbled on this again) for my own Tiny Free House. It looks like this might be a way to reduce the amount of material needed to build walls with short pieces of pallet wood. Maybe?
Anyway, these folks are in Woolwich, Maine. The kits are fairly affordable but they are exterior shells only, you finish the interior. Aside from being very cute the speed of assembly seems to be the best and most unique feature. Photo credit Bungalow in a Box.