First of all, there is a big difference between the 2 tests as far as iron. A softener will handle the iron but my concern is with the sulfur. If the smell is due to the iron, than it will go away once the iron is gone. If not, you will have to treat for the sulfur. What I would recommend is to install a softener to see if it will take care of the smell as well as the iron and the hardness first. Then if you still have the smell, get a chlorination system for the sulfur.