Where to start?

CPSLS34L65E LS3 Automatic Connect & Cruise Crate Powertrain System

TSP 418 CID 600 HP LS3 Turn-Key Package

Start here and see what it really takes. Looks to me like you can buy the entire setup off the shelf. Maybe I'm oversimplifying it, but it looks like scratching a fat cheeck will take care of your problem.