Well, sorry guys but I kinda put this project on the back burner. Sorry to disappoint. I got to a point to where I had to drop a lot of coin to just bolt up the 4l80e and there still were too many unknowns.
On a good note, its still going to be a sick one-of-a-kind ride with a turbo 4.8 in there. It will be running in a couple of weeks. I drove it with the N/A 4.8 and it was a PIG with the 4L80e. Some FI will certainly push it down the road a little quicker.