This is not the first time Duke (Joe-Downriver Motorsports Wiring) has done work for me and certainly won't be the last. Looking at the mess of a 6.0 LS style harness I dropped off to the final product you can see his attention to detail. He also took the time to write up detailed instructions with diagrams.
https://i.imgur.com/3Ox5shk.jpg
https://i.imgur.com/yitFjg2.jpg
https://i.imgur.com/PyHcw6w.jpg