blue slip is not available to any mechanic like the pinks slips.Better to call RTA or call some mechanic on ur local area i am sure they will be able to tell you who does it.
it will cost around 40-50 bucks for the blue slip. No need to get pink slip cos blue slip already covered that.
then get quote from AAMI,NRMA etc for Green slip(compulsory third party insurance)
it will cost around 550-600 as far as i know. then take all ur paperwork to RTA & rego it. They will take ur old plates & will be replace with NSW plates. Then ur done. :Pimp2: