I dunno...

I think the question would be which is the most time/cost effective approach.

I had a large diesel powered boat that had some engine issues (Cummins) created by a broken oil supply line. To fix it meant to either do the work with the engine in place or to remove the flybridge, the galley and salon to gain access to the engine room.

They came in with portable equipment to not just bore a cylinder, but also turned the crank.

So the tools must exist.

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1980 300TD-T (82 Turbo and Trans) 159,000 Miles "Jackie-O"
1983 300SD 272,000 Miles "Aristotle"
1987 Jeep Wagoneer Limited - keeps the MB's off the ice and out of the snow
1994 BMW 530it