Backup Exec 2014 software or backup exec applicance ?

Hi,

I am looking for a Backup solution for our environment. It has 2 hosts running Microsoft Hyper-V Server 2012 R2 on 10.0.99.x network with 10 VM's each.VM's have applications like

1) Active Directory

2) Sharepoint 3)SAP

VM's run on 10.0.99.x and 10.0.90.x.

We also need to take backup of one physical file server which is running windows server 2008 R2. 

Question : Would we be able to install windows agent on Windows 2012 R2 Core edition, so that  we can install on the hyper-v host and take backup of the .VHDX files which are stored on the host machines ?

which one best suits us .. Backup Exec 2014 software or backup exec applicance ?

Please suggest.

Thanks in advance