At 1 mm/block, with trees removed (they'll snap off), made with Mineways. From this world, down south ("east"): http://www.minecraftworldmap.com/worlds/qOZF6 - Really, this model has a number of internal rooms which should get sealed off (manually, by placing torches at the entrances) and then hollowed out. I think this would save $20 or so. But, I'm doubting anyone will actually buy this model; it was fun to export and examine. Download and check it out with the SAP Viewer Complete, for example.