Make contact with the Australian Institute of Professional Photography; their membership includes information about members such as studio, type of work, location etc. If they do know of a colour darkroom, it would be run by a professional likely using an analog-digital-transitional set up (in other words, phasing analog out over time) and would doubtless charge you for it; I don't think such a pro would let you rip in the darkroom unless you have a lot of experience. Setting up one's own colour darkroom is the preferred way, but the difficulty of obtaining chemicals has deterred many from this pursuit.