One weekend in April/May I am going to ride the GDT from Bacchus Marsh to Bendigo (both accessable by train). I play on making it an overnight, so they will be big days (and the Sat night accommodation will be slightly off route but will offer some great views).
http://gdt.org.au/GDTmtbJust pooling to get some interest, and will then set a date.
This will be a recon for our own VIC ITT challenge in the future.
Rhino