Lots......
Lots of Hunters travel the West Coast of North America, which can be an offshore trip in every way, and the Pacific Ocean. San Diego to Cabo is about 750 miles, San Francisco to San Diego is about 450. The Mexican areas and the Central California coast give you long, tough stretches with little or no refuge. Boats that I personally know of that have done all these runs, uphill as well as downhill, include Cherubini 30's, 33's (including mine) and 37's. At one stage or another, I have run into just about every one of the newer models of Hunters of 29 feet or over along the way or in my job managing Cabo Marina. A Hunter Legend 35.5 has won (or placed second) in the doublehanded class of the Pacific Cup, which goes from the SF Bay to Hawaii. I know at least one Cherubini 37 that went to Hawaii and back, and another in the Western Pacific. I talked to Hunter years ago with the same question, and they told me that they had sent quite a few of the Cherubini's to the Pacific, New Zealand and Australia on their own bottoms. Having said all of this, perhaps the most important elements, are preparation, modifications and condition of the boat (ANY boat), preparation of the crew (ANY crew), and intelligent weather choices where possible. These are at least as important as the choice of boat, assuming a basically seaworthy vessel or one that can be made so. Many of the choices of a particular boat over another are subjective, and may be driven by budget, skill, experience, level of comfort deemed necessary, and crew size.Budget probably defines the choices more than any other element. Sailors are notoriously hard-headed about what boats they think are capable or incapable of a given voyage (myself and many other denizens of the HOW, included), but I think we would all agree that the various crew issues mentioned above, and lots of subjective choices, are at least as important as the boat. It is usually the people that make or break the adventure!