The Nullarbor Plain also beats Siberia because an avid souvenir hunter can prospect in his shirtsleeves and digger hat. His quarry won't get lost in a meter of snow, like your inflatable reentry shield experiment did last year. Plus, gambling is a national sport in Australia. Nonetheless, you might offer the Aussies a piece of the action, so to speak, to compensate them for their trouble. This would still leave you hundreds of millions of dollars in the clear.
Beer is their other national pastime.
Thus, the interior of the continent is nearly as deserted as an ocean. As for those intrepid boatmen who are choosing to remain in the South Pacific impact area and fish for albacore, I note that although they would have the right to sue for damages under international law, they must first survive the sinking of their boat by your space station and manage to make it to shore, which is only where the international lawyers are to be found. However, they are unlikely to accomplish this feat from the midst of the Roaring Forties or Furious Fifties. Kangaroos, on the other hand, are approximately man-sized, warm, and much more numerous, but they do hop around quite a bit and can probably avoid the incoming debris. Likewise, rabbits in the Outback are all too competent at self-replication, thus their replacement value is also zero.