As Chimbu Chuckles says the minimum aircraft is the Cessna C182/180/185/206 and if your airstrip is at a reasonable altitude a Turbo charged one will be even better.
Allow for the basics in flight considerations such as increased take-off, landing distance, decreased climb performance due to a higher density altitudes, reduced climb performance due to turbulence and mountain wave activity.
The wind on the ground might indicate a breeze of 10 kts, but what is that wind at 2000' or 5000'.
Keep in mind that when BoM produce an ARFOR the wind is averaged out over the whole area, so when the met man prepares the area 30 he will most likely use an average wind taken over most of Victoria, so the wind in actual fact maybe a lot stronger in the high country. Have a look at the BoM website and see if there are many AWS in the high country and ring the local met office and see if they will give you the actual winds at 2000, 5000, 7000 and 10000' when they do the balloon flights. Then compare that to overhead Melbourne?
Keep in mind that a mountain waves and severe turbulence were on the forecast when the AC500 was lost last year, do you want go up in the high country in your C172 or PA-28.