Hello natoleal,
I'm afraid that no such guide exists at this time, nor is it likely to exist any time soon. The main reason for this, is because true redundancy usually doubles your infrastructure costs, which disuades most from actually going through with the idea, and those who aren't dissuaded by costs, usually have enough resources to implement their own custom solution, or buy a pre-made offer from their hosting vendor.
With that said, if you are serious about investing in a high availability setup, please contact us by opening a ticket to our support or sales department and we'll be happy to help.