This is the Right Place, Sandi
The first thing I'd do is order Peggie's book. (See link below.) It has reference material that's invaluable and she goes through what not to do, that is contrary to a lot of assumptions we might have and many of the available product offerings. There are really few mariners that have a clue regarding your question, but Peggie has done a lot to add to the numbers. I'm sure she'll give you some starting hints here, but go for the book. Congrads on your new boat! Rick D.