Well
 
I did the move files and detect application.   That worked and the game works.
But of course it requires an update.  When i attempt to update it says please reinstall the game.
 
Reinstall?  From what?  This is exactly what I was trying to avoid.  If I verify the installation it says that I should try an update.
Which of course requires a reinstall.
What is the official Stardock method for this???