Well, I think the court will help determine custody scheduling. If your wife is flaking out on picking them up make sure you keep a record of that and bring it to court. You may be able to reduce her custody... any chance your wife might give up her half? (My mom had 100% with me when I was a kid... I personally think kids in one place is healthier and during my divorce pushed for as much as possible... we were doing the 80/20 split... every other weekend with dad...)
There is no arriving, ever. It is all a continual becoming.