I hope you didn't agree to sending your kids out of state in writing. I would never DB at the expense of my kids. Your wife is not worth that... and she IS going to end up with then in another state if you continue acting this way.
I am not trying to beat you up on this issue but your hurting and willing to sacrifice anything in order to save your marriage ( I get that believe me!!!) But, what if it is not salvagable and you lose your kids 75% of the time. Who is going to afford flying then back and forth and the little one can't fly alone? Add that up a few times a year and see how much that will cost you. Don't forget that until they are at least 13 you have to pay anywhere from $75-$100 one way per child to fly solo (without adult). That will be impossible financially unless you have lots of extra cash. These are REAL things to think about before you agree to any of this.
M:47 M:18 D16, S19 1st S 1/08-5/08 Reconciled/May 7, 2008 Left again Nov 9, 2009 I Filed: Nov 17, 2009 Final: April 14, 2010 EX walked away from kids too