Configuring an Amazon Web Services (AWS) account to host Joomla web sites

General information for the business: We are in the alpha development stage of a business - Chimni - that will sell hosted web sites in Joomla.
Description of requirements/functionality: I need someone to configure our AWS account so that I can host multiple Joomla web sites (that we will build later) that have email and cPanel integrated into them.

Someone in our office has set up an AWS account and we have two websites hosted on it. But have realised that we need to reconfigure the way we host sites and we don't have the skills to do it. We need to ensure that our hosting arrangement has a uniform cPanel installation for all Joomla sites (not individual cPanel licences for each site). We also need to unsure all sites have email systems set up an enabled so that we can use cPanel to set up email accounts for the users of the various sites we want to set up.

We would like someone to do two things: look at the current configuration and tell us what we did wrong then fix it. We are concerned that we may need to back up the two sites that are on there. We wish to be advised before any work starts.
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