reacher,
I hope hope you make the right decision for you and your family.
As an aside I wonder if you took long service leave (and possibly delaying your re-sign commitment) and had a sniff around the outside world if that would make a difference?
Just over a year after I resigned from the RAAF, they sent me a letter offering me my job, rank and pay back as if I hadn't left! Sometime later still, they were offering jobs to many of us carry out flying training. So perhaps if one does leave and subsequently has regrets, all is not lost?