I say probably nothing. Move away laws are mostly for parents that live in close proximity of each other and a move away would hinder the relationship severly between the child and the NCP.
I have what is called a domicile restriction in my CO. It means that I cannot move out of my county or the surrounding counties as long as my ex lives within the same boundries. If I were to move the court could decide to transfer custody but it doesn't mean they would, just means they could. If for some reason my sons father moved away from the area than I could move freely since he no longer lives in the area enough to be involved. This type of move away law is standard and similar across the country. Because your ex does not live near you I actually see no reason why you should be stopped from moving at all.