I deduce you're looking for an ST1300, since you cite a silver '03.
John Meara on this forum had one, and can tell you about them- he put a lot of kays on his.
The price is fair if it's in top nick. The kays are very low for its age. I've got an '09 with over 18 thou.
Ultimately, if it looks good, no leaks, everything electrical working, starts straight away, no odd noises, powers away with smooth gear shifts, there's not much to worry about. Not many of us are in Sydney to have a look for you. I can't see it on Bikepoint- is it on the 'net?