It looks like you've been pricing commercial freight to relocate the boat. Have you considered hiring a delivery crew? I have no experience in this, and I don't know how much it would cost, or if anyone would be will to deliver an older boat that distance, but I would think you'd be able to find someone who would be willing to take that on for about half of what you are estimating on freighting the boat.
Additionally, the delivery crew would want it loaded out with all the spares and equipment you would be adding for cruising anyway.
Just a thought.