Oh, and AFIZs (within which an AFIS was provided) were 15NM SFC-5000 (I think) with a requirement for all aircraft to call inbound @ 30NM.
Correct.
I'm sure the huge volume of airspace covered by an AFIS 'Broadcast Area' of 20nm radius surface to 8,000' gives a lot of people a warm inner glow of increased safety. But what a joke.
When I worked there we had a spare console decorated with two VTC, one of Port Hedland, the other of London, in the same scale. In the area covered by London's international airports and a host of smaller ones Hedland had one, plus a farm house, plus some sand.
Not a waste of anything in particular. My sympathies to those that still have to work there.