Cisco :: Clean Air Connection With 3500 AP

For a Campus setup (University), if I deploy 1142 AP's on all the floors with a WLC controlling them, and put one 3500 AP on each floor, will that give sufficient Clean Air support with automatic Rogue elimination?  What about if an AP drops, does the WLC automatically try to cover that area with neighboring AP's?  I know the old WLSE would be able to do that, but not sure if the WLC can do that by itself.  What part of Self Healing can the WLC do with Clean Air, or is a WCS a must have in order to automatically Defend and self heal?  Also is the MSE needed for this if a WCS is used? What does the MSE do that the WLC and WCS can't?