Trans-Pac ferries are relatively easy, especially these days with GPS to remove the uncertainty of position and progress. In the bad old days when there was no way of knowing your ground speed, fuel was a constant worry.
Also on the Pacific run you are usually only dealing with three Sovereign States, all of which use English and operate to understandable protocols.
I would certainly recommend that anyone with a fairly modern new aircraft acquisition flew the delivery ferry simply for the experience, either with or without a ferry pilot. The Pacific ain't that hard that any competent IFR pilot could not do it without help. If someone paid me I would even ferry a decent aeroplane on this route myself, or hold someone's hand while they flew it. But nowadays if you gave me the opportunity to take a brand new Wonderjet to Africa or Afghanistan or most places between, I would politely decline. Well, maybe for 50,000 bucks up-front and first class return tickets I would reconsider......