I have had one r32 checked for me with RACV and another in NSW with NRMA.
Both times i think they did an ok job, they picked up alot that i wouldnt have noticed. Any car dealership/importer who wont let you get a car checked isnt worth ur time.
Fair enough RACV/NRMA are more used to dealing with Aus delivered cars, but i know at least in Vic, there are only a few RACV places that do import inspections. I had to take mine to RACV in prahran, and the guy who looked at it seemed to be knowledgable about skylines. He even picked out that the instrument clucter must have been changed as the gauges were blue-faced, (from series 1 R32s).