Hi HP, I can see your frustration - particularly if she seemed amenable to a move at one point. But I imagine there would be very few mothers who would voluntarily enter an arrangement which means they would be so far from their child and not see them for weeks on end.
What would the legal position be on custody and moving out of state? In my H and his XW's D, either of them must get written permission to take SS out of the country, but we are in the UK.
If that's the case in your position inter-state then I worry that you are pursuing a dream that your W may not ever agree to. It sounds as though her position right now is - if you go - he stays with me - and you can see him at intervals whenever a visit can be planned.
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus