Scrap what I said earlier. More yacking tonight, and yes it does look like BWCP will be a go-er next year.
As Rob said, GCTMC also run khanacrosses at parklands, and that was fun (just watch out for the poles that jump out at you!)
Apart from that... Hmm. I think Willowbank would have to be the next closest?
Actually, the Northern Rivers club run some motorkhanas, khanacrosses and stuff down near Woodenbong? That would have to be closer to you than Willowbank?
In addition to what Rob said, Mt Cotton isn't a very forgiving track.