so let me get this straight :
you want to travel
you want to start another family
BUT you don't want to be a deadbeat father
I am going to be brutally honest. It sounds like you are selfish mother****er. You can't just walk away from your wife AND the kids. The kids will need you now more than ever. You are in it 100%, even though your wife is crazy. You can't just ****ing travel the world, and leave your kids. Or start a new family immediately after your divorce. Time to man up and face the facts.
Believe it or not, there are numbers between 0 and 50. Face the facts? I set the terms of my life.