Not quite right regarding the MTSAT.
The Japanese Department of Transport wanted to get Australia on board from the start. So much so that there is a ref station uplink in Canberra as well as one in Hawaii. All that is required is the ground constellation to work out the differentials and transmit the code up to the MTSAT. There is already a transponder pointing this way. If you are wondering what coverage would be like, just look at any satellite picture of our neck of the woods. Those pics are from the MTSAT. $300million is bogus, the ground stations are already there, surveyed in, already talking to mummy, just need another aerial and another tray in the rack.
What IS required is to organise a cohort of like minded industry users to lobby Canberra to show it isn't just aviation that can benefit from this technology. Lord knows it will save lives out in the GAFA...GAFA? any time there is marginal wx it will save lives or rather, put lives at less risk.