Dont worry about the beans coming from Melbourne. Just go to the brown bean bay on this site and order some. They are roasted fresh and will get to you in a few days. I have often ordered some roasted beans when I get my green beans and the roasted beans from Coffee Snobs are great. And there are lots of ones to choose from for espresso to milk based drinks to plunger.
Like you I live at Thornleigh and there are not many roasting places near here, most are near city or Botany, Alexandria etc. Prices here in the Brown Bean Bay are very good by the way compared to roasteries in the city.