RHEV questions we are considering for our datacenter deployment

Could someone please help me with any or all of the following questions or point me at the best documentation source?

1. what are the steps to migrate to a new hosted engine from an existing hosted engine?
2. what are the best practices for deploying hosted engine on FCOE storage connected to a linux host?
3. what is the best way to migrate vlan configurations from one cluster to another?
4. what is the best way to migrate storage domains from one cluster to another?
5. what is the best way to migrate templates from one cluster to another?
6. what are the detailed steps and configurations to deploy two hosted engines in a cluster?
7. can we migrate vms between clusters, if so what are the steps and prerequisites?
8. how can we enable multiple vm connections via VNC?
9. how do you deploy and configure an RHEV proxy?
10. how can we automate the creation of a template with a given iso?

Thank you in advance!
- User who wants to explore using RHEV for our enterprise