I stayed at Grafton Showgrounds a couple of days ago, though only used power, and have no idea of what the amenities are like as I always use my own, but if they are like the power boxes I would say very old. There is a caretaker sat the gate who takes your money and directs you where to park.  Sites are quite level so not a lot of chocking needed.

thanks for that, what are they charging per night at the showgrounds