That would be quite a way to travel
We've been lucky getting support through playgroup Qld and the Young Parents Program to start this group up. I'm sure there must be similar organisations in Victoria, it's just knowing where to start which is the hard part! To start up a regular playgroup I know you need at least 3 families, I'm not exactly sure the first steps that have to be taken to start up a supported playgroup as I was luckily offered the job. There may even be some supported playgroups in your area. It's worth a look Even if you rang Playgroup Victoria and asked whats on in your area and if there are any groups specifically for younger mums, I know it can be hard to go to playgroups when everyone is at least 10 years older then you!
Anyway good luck finding a place, its so important to get out and meet people, if only for your own sanity! LOL, oh and ofcourse for the kids