Unlike child support, spousal support is often very difficult (if not impossible) to modify after the divorce is final, so getting it right the first time is a must!
The rule of thumb for alimony is that is paid for 1/3 to 1/2 the length of the time the marriage lasted . With the ex's health issues , it's quite possible a judge could continue the alimony for another term . Even with 1 child emancipated , the CS savings will only be % points .
-------------------- Never let your sense of morals get in the way of doing what's right. Isaac Asimov