Someone asked about the cost. Assuming the there is nothing wrong with the topology of the place and the ILS signal is of high enough quality the big ticket items are runway lighting, standby generators and signal monitors and training. So we are taking about a few million, not a lot of money. And then you have to ask, how many operators will be able to use such a system? Also, how often would the system be used? CAT III for Australia is a bit like buying snowploughs for Heathrow. They spent £4-5 M on equipment a few years ago and I don't think they have used it yet.
PM