I'm sorry you got over-sold. That said, it is still a Ghery and there will be substantial international press as it finishes. Assignment 6 months prior to close, likely to someone outside of Canada, may be your best bet. IMO, find an agent for assignment with strong connections in the Middle East or Singapore; people who will pay a large premium to own a small remarkable pied-a-terr rather than book a hotel room; advertise your listing in those locations rather than the GTA.
The foreign buyer ban expires Jan 1st, 2027.