So I'd sail it over to a boatyard myself?
If you are using a broker, then you, the broker, and the surveyor would sail it over. If it is a private sale, then you, the owner, and the surveyor would sail it over. You don't sail the boat solo or without the owner or their representative onboard (too easy to make false damage claims). You have to do a sea trial anyway so the transit could be either before or after the trial. In our case, we did the sea trial after the short haul.