I know this is possible to do, because in a past job someone I worked with created a PowerShell script that did this. I no longer have a copy of that script anywhere unfortunately, or I would post a sanitized version of it here for you.
But from what I remember, it mounted both shares (Master and Replica) and then performed an rsync to make the replica match the master. There was of course a bit more to it than just that, but that was the gist. We actually had several distribution points, so the script would go through and mount each replica one at a time and perform the rsync on each until they were all done and then exit.
We had it running about every 8 hours if I'm not mistaken, although it escapes me now how we made it run automatically. Something on the Windows server would kick it off based on a schedule. We could also remote into the Windows server and call the script manually in the cmd line shell if we didn't want to wait until it ran at the next scheduled time.
