The answer could be to call in an expert and have them do it. Maybe not
such a bad idea, I am sure the poor azalea roots would appreciate it.
God gives us others to fix our cars, drill our teeth, remove out
gallbladders, and yes do gardening work. Let it go, it will cost you
far less in worry, plus you will be enriching the life of another. Not
to mention the azaleas. My grounds are beautiful, I never touch it.