Duh-Bya's answer would 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.