Adding a 20 amp breaker is good to know. I hope people can learn from your post. I wonder if you may be able to show how to add 50+ amps. I'm particularly interested in a "distro" box that would be capable of providing power to 10,000 watts. What guage of wire? what types of materials? etc.

I know this isn't the thrust of your initial post...but I'm hoping for some info.