Nice writeup. Thanks for the info. I was thinking of doing something similar but with only one batter on under the right rear set and adding a rear seat delete to make room since my backseat hasn't been used in like 4 years.
You can do something like this:
I've also seen Odyssies and Brails on their side on the floor. You just need to be sure the terminals are isolated.
I just ran an Odyssey in front.