I'm just about to start printing (at the calibration stage), so I can't help out with parts.
That said, We have a
Melbourne RUG that may have some useful links. It'll also tell you the status of the various machines people have. Feel free to add details of your machine, even though I know Ballarat isn't really close to Melbourne, it's still in Victoria!
BTW: The HSBNE guys (in Brisbane) have their Mendel working and have successfully printed off one set of parts, and are printing the next set for another member. You may be able to chat to them and get them to print you a set of parts. See the
Brisbane RUG page for a link to HSBNE.