This is probably nuts but it might be possible. Knock down Edihad and build where Eddie is suggesting, the AFL buys the land and builds the stadium using their own money but instead of building a traditional stadium the AFL build the worlds first completely underground stadium, and then the AFL leases out the land on top of the stadium, allowing businesses to build sky scrapers on top. I am not sure if it is possible from an engineering point of view but I think the AFL would make a fortune in rent if it was possible.