RiscStation most certainly -do not- build RISC OS systems in Australia at the present time. Construction of ARM7500 based R7500 and POSsum machines was concluded late 2002 when RiscStation (Australasia) Pty Ltd surrendered their C-Tick certification license as a result of changes to the EMI/EMC regulations. As there was no testing to the revised EMI/EMC standard in place for the RiscStation board, it would have been illegal for them to sell them, either as components or as complete machines.
Sales of the machines to that time did not indicate that the costs of testing could be readily amortised.
DGS has in fact implied that the directors of RiscStation (Australasia) have acted illegally in manufacturing and selling non-certificated machines.
C-Tick certification is a serious business down here, the penalties for non-compliance are severe. This is what caused the final death of the RISC OS market.