Hong Kong billionaire Tony Fung is one step closer to his dream of building an Aussie casino. And not just any casino, but the country’s most lavish resort after winning approval to purchase a neighboring casino. The Australian Competition and Consumer Commission this week decided it would not oppose a planned $269 million takeover of the existing Reef Hotel Casino in Cairns by Fung’s Aquis Group. Aquis also plans to build Australia’s biggest tourist attraction — Aquis Great Barrier Reef Resort — at Yorkeys Knob. The fact that the two casinos are only 15km apart from each other initially drew concerns from the…