Hi Mark,
I have been an ovo-lacto vegetarian since 1968. It is not hard to cruise and be a vegetarian and unless you want cold drinks, you really don''t need an icebox. Since I mostly drink water, I can by without an icebox but the Admiral prefers her drinks chilled.
I suggest that you read Annie Hill''s book ''Voyaging on a Small Income''. Anne is an omnivore when ashore but becomes a vegetarian when cruising because of cost and ease of storage. She has an excellent discussion of the subject.
It is pretty easy to store dried grains, fruits, legumes, and pastas, eggs, and fresh and canned vegetables. Properly stored there are a lot of fresh vegetables that will last 3 or 4 weeks or more which is most of the way across the Atlantic in a fast boat.
To me refrigeration is the one item on board that I hear about the most problems with. If you can live without refrigeration your electrical consumption or engine run times can drop tremendously. That means that you can get by with less
fuel.
Feel free to email me since you have not posted your email and therefore I can''t email you.
Jeff