OK the generac is in a very conspicuous place on the wall, bigger than i expected, and we solved the ground fault issue. They announced it worked, everything I looked at was working, and I signed the papers and we're done.
Then I start playing, running some scenarios. The gas furnace won't...
I had to read this post like 5 times to start to understand :D Someday I'll get smart, but not today. I'm saving it to show to the electricians if they start to say that they can't do the job.