Oh, every doctor has his own waiting time, but if you plan on returning to school August 24, you will want your surgery no later than the first week of August.
I don't find any objections to doing two surgeries together.But reducing the height of the nose symmetrically is trickier than pinning them back. I would decline the ear surgery. You are a perfectionist: reduction of the ear height is not that precise.
Most of the "hump" you see is caused by a low radix, which is the upper most portion of the nose.This can be filled in the a cartilage graft from the septumFrom the pictures, it is difficult to tell whether or not the tip need refinement or more projection provided by the same cartilage.