Sure! wait, what kind of experiment? LOL! I have found a lot on Samba 4 site and using RSAT tools to configure but seems a bit involved with DNS bind and AD Sites and Services (IP Links and new sites). My RSAT Tools on my domain connected workstation cant even create a new site at all on the server which seems to be my first problem.
I have a few sites I can run these tests and experiments with across the fiber VPN's. I did pick up another dev. server this weekend I can do another install for any of this testing. Until then, I think I will facilitate the single DC for the 20 existing sites. I dont think it will be a solid solution when we reach the planned 80 sites over the next 5 yrs for a single DC to saddle the workload across VPN's (Fiber and 100x10 cable connections).
As far as the virtualization- Not a bad idea for a DRP. What I am looking to do is setup the Primary DC as physical server and firewall services and then I should do a P2V of that server on it in the event I need to do a quick recovery and turn up. Paired with the server backups should work great. I would like to run the locals as VM's on a vmware hypervisor (those sites have decent Firewalls already installed) for quick VM backups.
Let me know what you think- I am game for some experimenting to advance the functionality of this platform.