Managed to book Qantas business classic reward seats, Canberra to Vancouver via Tokyo. Jan to Mar. Connections not real good but can put up with that in a business lounge. Quite a lot of availability on JAL but can be a problem to book on QF website. JAL availability will only show under multi city bookings. You can search on JAL for availability then plug in segments on QF multi city. Would not complete booking, errored at final stage on QF website and had to call. Then would not ticket and 2 further calls required. Luckily no wait times on QF call centre over easter, amazing. Waited 4 hours earlier in the week before call dropped out. Quite an ordeal but worth it, happy to provide further info.