Instead of getting on board a Qantas or SAA plane, why not rather take a 16 day blissful cruise from Cape Town to Perth - no cramped little seat, rather pure luxury and leisure. Cunard's Queen Mary 2 is departing Cape Town on the 27th January 2018, and arriving in Perth on the 12th February 2018; stopping at PE, Reunion and Mauritius on its way to Perth.
Alternatively, if that's too early for you, you can enjoy a cruise on the Queen Elizabeth from Cape Town to Perth, from the 19th January 2019 until the 4th February 2019.
On 27 Sep 2017 Cunard announced that they'll be launching a new ship in 2022, in response to "incredible demand" for Cunard. The new ship will incorporate the best of the existing fleet together with catering for evolved needs of guests. Watch this space - they'll be revealing more details in 2018. Exciting times, with all the new MSC ships in the pipeline, and now a Cunard ship too.
Cunard's cruise ships in order of size are:
Queen Mary 2
If you're keen on getting a job with Cunard Cruises or Princess Cruises, then Blue Ensign are the people to contact. Be warned though, a job on a cruise ship is not as glamorous as it sounds. You can apply for jobs in the galley, bars, dining services, photography, pursers department or in IT.