depends on the car.
for example my dad just got a brand new VE calais so paint work is immaculate so no "paint prep/clean" needed. he got quoted $490 to cover the front bar, foglights, headlights, front qtr of bonnet and top and side front qtr of the guards.
you can also get the skirts or any part of the car done.
give these guys a call. will be getting mine done after front end is resprayed
http://www.invisiblecarbras.com.au/ 0419435427