Here are some more links for anyone interested and quotes with...

Here are some more links for anyone interested and quotes with underlining added by me

“This is the first time the machines have re-appeared since they began tunneling from Forrestfield late last year.

Both machines will now undergo maintenance for a month where they will be cleaned and serviced before continuing to Redcliffe station.

The project remains on track for completion in 2020.”
https://www.9news.com.au/national/2...rport-train-station-for-new-forrestfield-link

Also

“Federal Urban Infrastructure and Cities Minister Paul Fletcher said the federal budget would continue to support Metronet projects.
"As well as this investment, the Australian Government has committed $943.5 million for a new Perth Congestion Package to ease pressure on the urban transport network and improve safety," he said.
"This brings the total federal Metronet commitment to $2.33 billion, bringing our broader commitments in the state to $9.6 billion from 2013-14 to 2021-22, as we continue to roll out our $75 billion infrastructure investment package across the country."
https://www.watoday.com.au/politics...-airport-central-station-20180521-p4zgj8.html

Thank you for posting this excellent summary @Srebrna ..
I agree with Parma’s “nerves of steel” analysis
also agree with your take on the company, probability assessment, research team, advice and song choice