Has anyone had any experience with the Think Tank Airport Accelerator bag as I’m Looking at getting one for a safari next year? Needs to fit carry on size of 23x36x56cm and hold Canon 1dx mk2 / 5d mk3. Canon EF 200-400 f/4 IS USM Extender 1.4x. Canon 70-200 f2.8 Which with the bag weight should just get me inside my 10kg weight. Or any other ideas for a bag?