My cousin was 5 when her mum moved her away about 4 hours from her dad (my uncle)
Parents didnt get along at all but they made it work. He was the much wealthier one and paid for her to travel back to see him on a bus most of the school holidays and special weekends that maybe there was a birthday.
I must admit that her mum made it difficult for him but they never got along and it was a terribly bitter divorce so you have that going for you.
Anyway she and her father were always very close and talked on the phone all the time and at the age of I think 12 she asked to love with her dad full-time and visit her mum. At this age they have a choice to a certain degree and she lived with him full time ever since. She is a well adjusted independent woman now and she moved out on her own around 20 and married and has a really successful job and has just started a business on the side which I believe is going well.