This looks like a set of marmite answers to my original post. Thank you all for your answers.
I might take the middle ground ...
Look for a house for the first years rental. The kids can't get that bored initially surely, especially with the family visits planned in the first year. Year 2. We can take a view if we move again.
So, all I need do now is find that 4 bed house, with fully maintained pool, fully fenced, on the beach/harbour, 4/5 beds all ensuite with visitors annex for $200 a week. Simple.