I have Lived in Port Lincoln much the same as Whyalla - Wanna, Gonna but it never happens. There is talk of mining taking off on the Eyre peninsular If the port is dredged - The fisherman hold power and don't want this to happen. IMO Port Lincoln is a much nicer place to live than Whyalla.
I worked in Whyalla - My experience was that brain matter is severely lacking. Trying to get semi reliable workers was difficult for the company I worked for (not mining related). The baby bonus created a mini population boom as every teenage girl wanted to cash in on this marvellous government scheme!
which is why I would recommend sticking to the state capitals.