PageSet Australia still has a scanning service - They are located in Mt Waverley, Melbourne.
They have 2 drum scanners and a flatbed.
The drum scanners are both Heidelberg, 1 Tango XL and a Primescan which can both do A2 size.
The flat bed is a Heidelberg TAngo which can do A3 extra.
Their phone number is (03) 8542 5555 or (03) 8542 5517