Joe,
I just saw your request on installing a Norcold refrig. I have an email on my install and some questions regarding operation of the unit on DC. I have not posted pictures yet, but I modified my helm seat/cabinet to handle the refrig. I installed a Xantrex battery charger that will hopefully keep the batteries charged. It took me about a day to modify and install the refrig. I would be happy to talk it over with you if you'd like. I did add a simple plywood support base for the refrig and had to add some blocking to the sides since the Norcold unit is a bit smaller then the cabinet opening. I cut up the shelf unit that I had to remove to add the refrig and re-used the shelf material to make filler strips for the sides and top-sort of like face frames for a cabinet. I used the existing cabinet base material as a template to make the bevel cut to the hull and that worked for me. It came out reasonably well. I might add some additional trim in the future to dress it up. I ran dedicated AC line and DC lines for the refrig. The Norcold draws fairly low currents on AC and DC, but I used 12 ga. wire anyway-probably overkill.
Good lead on the Novacool, I had not heard about that unit before I selected the Norcold unit.
Best of luck on the install.
Jack Howell