Upgrading and Moving EV 10 to new servers

Hello,

I am trying to figure out the best way to accomplish two goals with Enterprise Vault 10.

1.  Upgrade EV 10 to EV 11.

2.  Moving EV 11 to Windows 2012 R2 server and split out the SQL server to a separate Windows 2012 R2 server.

I currently have a single vmWare virtualized Windows 2008 R2 server running SQL Server 2005 and all of the EV 10.0.0.1316 services.  I would like to split the SQL databases off to their own virtualized server (Windows 2012 R2 and whatever lateset SQL server it can run on) and then move EV to a new virtualized server (Windows 2012 R2).

Is it better to upgrade first and then move to new servers or move to new servers and then upgrade?  Also is there any documentation that outlines these steps?

Thanks!