I know Moruya, but was hoping that someone might be able give me a personal account of the camping ground. I'll just have to try it out and then I can write a review.
I think it probably would get very busy in peak season, but then so does Mystery.
There is one downside to the location: I'd have to go over the Clyde and I hate the traffic on that road. There are way too many idiots on there when it gets busy. I much perfer the Brown Mountain road.
If I'm really keen I can take the dirt road from Araluen. It's pretty hairy though and I have to go 40kph most of the way (and it's about 100kms!). Last time I took that road I had locals trying to convince me to turn my little Astra back and take the highway. They thought I just got lost. It's a fun road to drive on if you're not in a hurry though.