I see a few hoops to jump through and even then…
First they need some takers, to live in the NT on that salary having moved from UK.
They need visas to work in Australia, issues just there.
The salary on offer may not meet FWC requirements.
They will need either licence conversion or certificate of validation.
Once all those issues have been sorted, they are talking about 15 crews. That would be about 10% of their crew requirement.