I decided that the Genesis framework from StudioPress will be a good old faithful for this project. Not only is it a solid framework, but its well coded with good security, SEO optimize (that is already built in), but have good developer documentation available for customizations.
Tasks for this project.
Export all the data to CSV.
Modify and Import all the data back into WordPress following the WordPress database schema.
Custom build reusable templates.
Custom developed functionality to maintain the features from ExpressionEngine.
Responsive Styling Adjustments to both sites. - Required matching each design to pixel perfection.
In the end two sites were delivered with the exact same functionality, with the same look and feel as the previous build sites.
Additional Work. Some more features were after this project.
To pull in news from an external site via an RSS feed.