If you can't find somewhere and depending on how far you want to travel, you could try the Springbrook PCYC camp. We stayed there a few weekends ago, booked out one of their 2 camps for a catch up with mates and their families. Cost $10 per person per night, gets you basic cabins with bunk beds to sleep in, each has a shower and toilet in it, and full use of the commercial kitchen and meals area which has a fire place you can use and a TV there to watch also. They have a few rules to follow, but if you're not planning on being drunken yobbos, the rules aren't an issue.