Delivery charges? Don't you pick it up lol?
Anyways for stamp duty - if I remember correctly it's 3% of the purchase value of the car. (I'm in QLD so it may differ slightly)
REGO - 1 year rego is close to the $600 mark ( once again in QLD)
CTP - get an online quote from an insurance company
If I were you I would try and get rego and/or stamp duty in the purchase value of the car. An incentive like a cash sale may do the trick.