Very optimistic re $100K+ on mining aerodromes.
Most mine-site ARO's are employed by facility management companies like Sodexho and ESS, and in between strip inspections they can be found cleaning dongas or washing dishes. Even on a 2:1 roster they very rarely make above $85K.
Aerodrome Managers on mine-sites can make circa $100K but the majority of mining strips, even certified aerodromes, employ their aerodrome managers/ARO's as 'utilities.' (Inspect runway, load bags, clean donga....)
Many misconceptions around about salaries on mine-sites and that is one of them.