Strategies for synchronizing several Virtualmin instances

we are planning to install several Virtualmin instances (5-10) in order to be able to trasparently moving virtual server among them (we need flexibility as well as some level of fault tolerance).
We use Centos 6.x and are evaluating Cloudmin for this environment.

What can be done to keep Virtualmin hosts configuration well aligned?

I’ve read this:
Do we need to elect a master instance and periodically push Virtualmin configuration to other slave instances?
How do you keep system packages synchronized?

Any suggestion or experience would be very appreciated