Lamington NP overnight

Looking for some recommendations on an overnight hike in Lamington NP. Have done quite a few overnights in and around Mount Barney and have decided to come into the rainforest for a bit! I prefer to get away from the crowds so lean more towards off track (my nav skills are ok). Anyone have any recommendations for Lamington, ideally looking at long walks to get away from the crowds and add some misery and emotion into the mix!!