Based on the buy price of 239400 Yen (front and rear bar, sideskirts, rear wing, front guards and bonnet) is approx $4600 landed in Melbourne. For used headlights add another $1000.
For just the front half of the kit at 134400 Yen (front bar, guards, bonnet) is approx $2810 landed in Melbourne. Add $1000 for used headlights.
Im not 100% sure if the kit includes the all the mounting brackets etc (pretty sure it would though). Can check this out if required.
Pricing will decrease ever so slightly if several kits are bought at once (only die to freight costs). All prices listed above include all relevant import duties/GST. Freight within Australia/painting fitting of kit is not included.