Owners and the occasional guest or two. In our case, I think the boat should have a room that is convertible to be used for whatever purpose, but can be configured when necessary as a third stateroom. Each stateroom should have its own head and shower, if possible. It was a perfect number. If this had not been on a delivery schedule timetable, I would have made the first leg to Cabo San Lucas.
Shorter legs lessen the fatigue factor.
To be safe, one should have crew if you're making long passages. We would prefer to not have crew. I see this class of cruising without paid crew, unless you're making a crossing and cannot find suitable crew, or friends who can get away from their responsibilities for the full duration. Without those friends, I would hire professional crew to move the boat with myself as captain with the understanding that employment concludes at destination. This is a good way of making long passages, which, by the way, is a very small percentage of cruising.