Help is on the way...
Any idea which side of Maui the ferry goes to? If they’re on the west side, they’d have a passenger advantage, but I’m not sure about freight handling capability over there. If they’re going to Wailuku, they’ll have freight handling, but not much in the way of tourist amenities.
It makes me wonder whether travel by ship is still a viable alternative to hopping a flight to Hawaii. I think the trip was about 5 days from San Francisco, but that is only a guess as I wasn't in the habit of checking calendars at age 4.