Have a look on J-spec's website:
http://www.j-spec.com.au
Generally, you're looking at around $2,500 for shipping + 5% import duty + 10% GST + $3,000 compliance + $700 rego + stamp duty + $1,100 importer fee. So a $7,500 car can end up costing $15,000 on the road. The costs do add up, so check if it's worth it over buying locally.