Active Directory Restore Plan

Hi,

 I'm after some advice on writing an AD restore plan. We have a single domain forest with 4 2012 DCs at a 2003 domain and functional level. We use Veritase NetBackup which can restore the DC OS with the system state data.

https://www.veritas.com/content/support/en_US/doc/18716246-136359033-0/v41613219-136359033

My plan for a non authoritative restore is to use the above, but if an authoritative restore is needed, then to additionally use ntdsutil:

1. 1.        Ntdsutil
   2.       Activate instance ntds
   3.       Authoritative restore
   4.       Restore database
   5.       Once finished “quit”

We have 6000 users in a single AD site. Would the above be a feasible restore method?

Thanks