Plus all the mods you've listed must be removed and replaced with stock items at compliance - and Vicroads will want to inspect the car in this state. My car got knocked back at it's first Vicroads inspection due to ride height, which I had to rectify and go back. Even with a RWC...
It's not hard to register a fresh import, but you need ALL of the paperwork. Import Approval Paperwork, Compliance Paperwork, Proof of Purchase, RWC and you need to book in the inspection in advance - see here: http://www.vicroads.vic.gov.au/Home/Regist...egistration.htm
oh...and more money. You'll be hit up for Vehicle Inspection fee, Rego, Motor Vehicle/Stamp Duty & Number Plates.