I got a good one. She handles nothing but divorce.
Good. Custody battles can get very ugly--I hope yours doesn't. You've done right by your kids and right by your W (even if she doesn't believe it). There is no reason that custody should be any less than 50/50.
She'll have a tough time moving 350 miles to live in bliss with Shrek if she doesn't have full custody. That, I believe, is the real issue. Life's full of tough choices.