Personally I would want my kids to stay with me if I divorce that's why I would prefer to get married in Somalia cause the system is fair but I love how you're avoiding the total bias that goes on in family courts in the west.Yes, one of the conditions is as long as she doesn't remarry. Otherwise custody is rightfully hers.
Some parts or all over the country? I don't see how this works considering how the Somali household is set up. Generally Somali men respect the role of the mother and her part in bringing up the kids. I can't see a Somali man taking away kids from their hooyo, and I can't see it being acceptable in our culture/society.