essexlad, there are many Laterals in the RAAF. Australia House in London regularly dispatched around 30 people from RAF, Army and RN to Oz every month until a couple of years ago, when the GFC became a substantial workforce retention factor in the ADF. The process is tried and tested and while you do have to shell-out for the visa process as an applicant, if successful you then get reimbursed in Australia; the RAAF also ship you, your belongings and your family out for 'free'. That is, fulfill your commitment and they won't ask you to pay back the T&S.
Beware though, you either love vegemite or hate it!