Just_ace on here I am pretty sure has a factory spoiler in white he will sell (if he still has it).
AFAIK that car was orignally yellow and has a preofessional respray to the blue.Has some nice goodies installed on it too if I remember right (big brake kit, aftermarket ecu, decent exhaust)
My turbo has 20,000 less km then on yellow one and seems to be alright mechanically (apart from some worn bushes and joints). If well maintained you should be good.
Would advise getting some sort of pre-purchase check on it before hand though I think WTF Auto (
http://www.wtfauto.com.au) offers that for a small fee.