Panel Beating Help Needed Urgent?

I won a Subaru Impreza Rs 2009 model. I have scratched the enamel off my bonnet foolishly, now the whole bonnet needs to be repainted. The car is painted in pearl (white). I heard pearl is very expensive. Could someone please give me a rough quote, if they know what there talking about. I'm located in sydney and need to get this repaired asap. All your help and thoughts will be much appreciate.