Joomla 2.5 to 3.x update & CiviCRM update

We need a PHP/MySQL wizard to cleanup and optimize the current database to meet best practice standards for CiviCRM. This is a large and active database which occupies 1253.89MB. Update the Joomla install from 2.5 to 3.4.x. as well as update the site templates, and all plugins. Update CiviCRM to version 4.6.x We will QA (Quality Assurance) the update in the development space before you move the site production. We will perform a last QA after the site is in production.