This one looks reasonably reachable. It appears to be directly behind a homestead but i'm sure with a bit of sweet talking we can get access considering its only 50 metres from the house. Pretty well formed unsealed track from the highway aswell.
Twistie is planning to be there with others around 4:30 - 5pm. Edit: I decided not to go following all the rain we had this morning. Decided the dirt road would probably be impassable in a sedan.
Matty will see what happens, but will probably be sans car.
Looks like an Adventure™ — a kilometre hike along a creek/ravine, through the scrub near Dotswood. There's an airstrip (?) nearby, and a quarry just up the road. Hi-res Google Maps data puts a dirt track near the point. Could be private property, but looks pretty open. Incidentally, it's about 3km north-west of the awesome impact crater I spotted in satellite images a while ago.