The two regulars I go to are 15-21 Ninth Ave, Campsie & 264 Beamish. Had luck at both but because of obvious language barrier it took just a finger and asking how much before negotiating (from memory both times were like $100 extra)
Honestly most of the girls I've had (never been shown a lineup or asked to pick, always just whatever walks through the door or points me into a room) haven't looked old at all. I'd say the oldest is probably 35-40 and that is rare for me.