The reason they were able to do it for so little money is that they have their own portable sawmill on the property so they are able to harvest their own wood. On top of that, they used reclaimed materials for their windows, door, furniture, furnace, and other items.
They built this little bunk cabin to house their tools (and themselves) while they build a larger log cabin on the property. Please enjoy, learn more, and re-share below. Thanks!