I think a few of you are ready for one last project - If you are interested in setting up a Remote Desktop Services server and hosting Virtual Desktops this might be worth a shot.  Basically, you setup a server that hosts an OS rather than just hosting Remote Apps.  We have setup Remote App server before.  Since you aren't accessing it from the Internet you can probably issue a self signed certificate.

https://blogs.technet.microsoft.com/canitpro/2013/04/25/step-by-step-deploying-virtual-desktops-with-windows-server-2012/

The second link below is showing how to create a Virtual Desktop Template in Hyper-V (note that it is a sysprepped template)

https://social.technet.microsoft.com/Forums/office/en-US/0fd59a3b-9e8e-459e-90c2-bc057461b7c1/how-to-create-virtual-desktop-template?forum=winserverTS