I am not realy going to try and give any advice as you alone realy have lived the history with your W and you know inside what you will be able to handle and tolerate. I actualy think it will be good for your kids to have you reasonably close , and it sounds it will not be so close as that you will need to see each other unless necessary.
I dont see a lot wrong with it.
Take care of your kids , and watch the middle one (16) for some reason they can feel quite alienated particularly at that age.
