Hey mate, QR holds ameture drift nights about once a month (every third week usually), gates open around 5 and cars on track from 6~ just jump on the qr site and there's details there.
Cost $10 to spectate but I'm not sure on track fees, there is also a skidpan/wet course set up with a few cones to scoot around.
Fantastic night, and it always draws a big crowed and lots of cars