One other note, going from 24 down to 12 volt means most of your wires will need to be larger to handle more current.
I don't have anything set up for equilizing yet. I have an old unit out of a motorhome I was gonna retrofit that will convert the shore power to 12v for interior lighting, and battery charging.
On a side note, the Odyssey crew is switching the boat they bought from 12 to 24 volt.
... plus dash, gauge, radio, and cigarette lighter options are out of the question...