XT clone power supply (working or not)

I'm looking for an XT style 150W power supply, the type with the big red paddle switch on the side.

I'm in the process of restoring one I have as a hot spare for my XT clone. However the casing for the one I have is badly rusted.

Preferably cheap and located in Melbourne. I don't care if it works or not, I can either repair or replace the pcb with the one that I have.