I think your w will not be able to maintain taking the kids to work with her constantly. I imagine the kids are going to grow bored and become understandably disruptive? That cannot be a long term solution.
I just want you to know I am thinking of you.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced