I am looking to see if any one has built either of these arks? I like the 2 story design. I don't want the weight of the full catawba ark, but like the look of its "little sister" (the second photo). The movable coop from organic gardening does not provide me with enough info. And before I buy plans from ebay for the red one I'd like to talk to someone who has built the ark. THANKS!