Ship truck and camper to Hawaii

April fools was yesterday.

My Sprinter bus started its life in Hawaii and after couple of years was imported to California and I have seem more vans going this direction.
Meaning it has to be some economic reason why vehicles are shipped this way, not the other.
The cheapest way to ship vehicle is Ro-Ro system, but don't know if that is available for this destination.

I can't even imagine the logistics of getting a truck and camper to one island. Let alone trying to island hop with it. I would be looking for a vacation company in Hawaii that has equipment on different islands.

Hope it doesn't go across on the Ever Given!!