It looks like we're going to get SBAS anyway, and funded by the government:
In the budget paper
Budget Strategy and Outlook Budget Paper No. 1 2018-19
Better GPS and satellite technology access for Australians
In this Budget the Government will invest $224.9 million over four years to provide accurate satellite-based positional, navigation and timing (PNT) capability which will enhance GPS capability across Australia. This measure will deliver PNT data with an accuracy of three to five centimetres for regional and metropolitan areas with mobile phone coverage and up to 10 centimetres elsewhere.
And in the Minister for Resources and Northern Australia's media release
Better GPS and satellite imagery to support a smarter economy
8 May 2018
The Turnbull Government is investing in the global positioning system (GPS) technology that will create jobs and support Australian industry.
Minister for Resources and Northern Australia, Senator the Hon Matt Canavan, said the Government is investing over $260 million to develop the satellite technology.
“We rely on satellite and GPS technology for just about every aspect of our lives - from Google Maps on our individual phones, through to air traffic control at the busiest airports,” Minister Canavan said.
“More precise technology will make Australian businesses more productive, safer and more efficient.
“More accurate GPS will improve productivity by allowing new technology to be created and used across the economy. Growing Australia’s digital economy will also benefit developed sectors such as mining, transport, construction, aviation and agriculture.
“This investment will improve competitiveness and secure jobs across the Australian economy.”
Under the package, $160.9 million will deliver a Satellite-Based Augmentation System (SBAS) (the technology underpinning GPS) to improve the reliability and the accuracy of positioning data from five metres to 10 centimetres** across Australia and its maritime zone.
A $64 million investment in the National Positioning Infrastructure Capability (NPIC) will complement SBAS to improve GPS to an accuracy as precise as 3cm in areas of Australia with access to mobile coverage.
“Our investment in this world-standard technology will have direct benefits including virtual fencing for farms and better management of cattle and livestock over vast distances,” Minister Canavan said.
“It also has applications for regional aviation such as improved access to regional areas by enabling planes to land on smaller airstrips and navigate difficult terrain such as canyons.
“The increased reliability provided by better GPS will improve safety for aircraft flying into regional and remote aerodromes, such as the Royal Flying Doctor Service fleet. It will reduce the impact of weather on flight cancellations and diversions, and improve the safety of landings.
“The resource sector will also benefit through better control of mine infrastructure, safety and more precise data for environmental rehabilitation.
“This is a practical investment to improve the lives of Australians and make businesses more productive. This technology provides instant, reliable and accurate positioning information, anytime and anywhere around Australia.”
A further $36.9 million is for Digital Earth Australia, a world-class technology that will give Australian businesses greater access to reliable, standardised satellite data that identifies physical changes to the Australian environment.
“The practical benefits of this investment will extend across our economy. This data will help researchers, governments and business better understand environmental changes, such as coastal erosion, crop growth and water quality,” Minister Canavan said.
“For example, information drawn from satellites is vital to help graziers increase the capacity of paddocks and make their farms more viable and sustainable.
“Our investment in satellite imagery will ensure a range of Australian industries have access to data that can help them tailor their investments, create jobs in target regions and increase their competitiveness.”
Media contact: Minister Canavan’s office 02 6277 7180