I second Orange. If your looking for a pretty central location, the hall utilised by Outpost 6030 is pretty good (right next to the freeway, literally across the swan) and should be able to provide most or all of the terrain you would be interested in.
Shoot a message to the current committee for Outpost (Rathnard, eckythump, Soilworker, Teddles22 or Loki501 - think I got those down right), and check out what sort of arrangements you might be able to come to.
Solid answers might be delayed a few weeks - some committee members may change coming into the new financial year, but clearly any communications would passed onto any new members. Only a few weeks to July