As previous posters have said, you can indeed be paid by your new employer during both terminal and annual leave. You can work for someone else during resettlement (officially unpaid but as long as you are upfront with the taxman then it seems to be no real issue).
Incidently, the RAF will of course support you during resettlement by providing T&S (assuming the unavailability of public accomodation) which is a great help.