NS Cloner is awesome for copies of blogs/sites within a network, but the use case I'm describing is about copying/backing-up/moving the network (incl. to a different server or directory). From what I can tell (and god knows I've tried!), NS Cloner isn't up to that task.
I think Duplicator can do the job, it's just not plug-and-play like it is on single sites - so admins have to be happy to jump into the DB. after running installer.php