Mate I have a clean r32 Gtr and Ive had it for 8 years and the engine only just let go, but I was being an absolute idiot when it finally did (at a texikahna, not the street).
So yes there are some good ones, get a compression test and pressure test the cooling system and check the normal things (body for rust etc) and enjoy your purchase
Strongly recommend a fuel pump upgrade and tune to suit Aussie fuel, before even driving it though