I'd go for Augustus in the hallway or the living room rather than a building - not that we have room for a belvedere, etc., living as we do in a high-rise. I like your choices, though.
Your property seems perfect for such a folly. My folly would have squatters.
Hello, where is that grassland or pastureland photo taken? It was relaxing to stay and take a nap there. In addition, The place can inspire and relieve stress to any traveler that ventures there.