Given Stevie's management style any upgrades will include something along the lines of the US embassy in Ottawa but with a moat and crocs that can survive the winter and the BS that the politicians turn out. No doubt there will also be a throne roam where he will be crowned as emperor - at least in his own mind! How my soul pains at the thought of his inconvenience.
People hate the cost of renovating dignitaries homes, but upkeep is part of life and the longer it goes on the bigger the bill. Its not like he is spending millions redecorating.