SinCityRT
stcr@lvcm.com
That E-Bay auction isn't for a production fiberglass Shaker hood. That's just a kit that allows you to modify your stock steel hood and convert it into a Shaker-style hood. A body shop will have to cut out the opening in your factory hood, mount their trim kit, and then attach the Shaker assembly to the top of your throttle body. Not sure if I'd spend $500 for this kit plus the cost of mangling your factory hood vs. the $800 or so for a separate quality fiberglass piece with a warranty and the ability to sell (or store for future swaps) your factory hood.
As far as I know there's no 4.7 kit available because of the style/shape of the manifold and throttle body.