This is a Paper Craft 1/150 scale size from the manufacture Of Diffusion. Will be released November 30, 2010 so that isn't to far away. The price is 4,578 Yen.
It makes the house, the well, bicycles and carts and a ladder. At first when I saw it I thought it might have been a plastic kit but it was a paper craft. Still really really cool. Anyone is interested in this look for the Howl's Moving Castle Paper craft that is completed because that is incredible as well.