Airnorth does operate that Bandit out of KNX into Argyle, but I doubt that it's this operation that's being advertised, mainly because the other position with the same company is a PA31 position. Airnorth have also advertised the position with their name added.
So unless Golden Budgie have just aquired themselves a Bandit (doubt it, because there's no $20,000 bond required with a prior endorsement,
), then you can almost rule out Northern WA. Perhaps it's out of Karratha??
morno