This is a 2 for 1 "How To" video, but each conversion has nothing to do with the other. I had it apart, and was doing both conversions, so why not shoot a video at the same time.
The LED conversion uses the board that GunRunnerJohn designed. I had my own LED strips already, and I don't mind doing some soldering.
The Kadee conversion addresses the issue of the Atlas mounting holes not being a perfect match for the Kadee mounting holes.