Sorry for the slow response.....I am still working, unforfunately. Evidently, in 1999, refrigeration was an option that the first owner did not pick. It has the 2 coolers boxes....top access...with the hole between them. In the 25 years since production, I have to think there have been many improvements so I want to install the most efficient option now. My retirement trips from Florida to Maine, Keys and Bahamas is now fairly close so I want to get this done. Obviously choice of batteries and recharging will be important as well.
I appreciate everyone's responses.
Tom