There was a forum member on a few years back from St. Augustine, Florida, a retired judge as I remember. He and his wife blew a Cat engine in their DP while on a round trip tp Alaska. Some of the big parts in the engine decided they wanted to be little parts and live outside the engine instead of inside.
They got towed to the Cat dealer in Fairbanks, who found a new or factory re-manufactured engine in the Seattle area. Three to four weeks shipping time by rail barge to Fairbanks. So they rented a car, got a hotel room, toured around that area for a few days and then flew back to Florida to wait for their rig to be fixed. The dealer called them when it was ready and they flew back to Alaska and continued their trip. He posted that he was on the high side of $20,000 by the time it was fixed. They have since made a couple of more round trips back to Alaska, basically trouble free, according to him. Haven't seen them on the forum of late, but they are also boating people.