The inner shell I'm taling about. If you buy a console and decide to do this project, make sure it has this inside. It contains the ductwork needed to make the rear vents operational, the mounting plate for the floor shifter, and the console should come with a wiring harness.
The harness should have a connector that mates to a connector in the dash, another head that connects to the floor shifter, and a third harness that will connect to your rear 12v power point.