We recently paid a couple dollars short of $300 to ship a medium weight (2501-4000 lb) auto from Honolulu to Kawaihae with YB.
We have a trailered boat that has gone from Oahu to Kawaihae (10 years ago) for $825, then back to Oahu (5 years ago) for $1050. I'm sure it would be even higher now.
Here's the
Young Brothers contact site.