If there seriously are fans heading to Sydney for the WC then you're all more than welcome to come along to a very unorganised touch day I run during each NRL offseason.
Usually, fans from various NRL clubs put together very poor touch footy teams and we congregate in Parramatta for a day and play some unorganised, very amatuerish touch footy until we pretty much can't walk.
It's mainly about getting together during the offseason, throwing a ball around and having a few drinks and you guys are more than welcome to come along.
Drop me a PM if you're interested and we'll see what we can hook up.