Astromart search history shows prices ranging from $2000 - $3500US depending on what accessories with them.
US price does not neccessarily translate here as you have to factor shipping of around $400au to land one.
The last FS-128 on astromart sold for $2000 which was a steal. See link
http://www.astromart.com/classifieds...fied_id=727019
Not an answer but gives you an idea.