If you look at google earth (3rd Sep 2019) you will see the windsock to the south east of the farm, circled by the spraylines. Those spraylines continue north across the access track (east-west) suggesting probable ruts across that surface.
I was along the Bangerang-Sheep Hills road a couple of time this last weeks with harvest in full swing - doubt you would be welcome in a petrol driven machine surrounded by heavy stubble - if the strip still exists which I doubt.