That's exactly what happened to me when I brought my car over from Vic. I didnt have that plate either. You have to go to regency and fill out some application for exemption then after youve got that in the post like a couple weeks later, you can take it down for a full roadworthy, a 1 hr session. Book a regency appointment tomorrow and buckle up cos you'll be waiting on hold for a good while if you are as lucky as me and I had a sweet 4 week wait for the next appointment too! Make your car stock as a rock and if you're lucky it'll go through first time. Not sure if you can avoid the roadworthy if you're living in the country.