Turning a J-class destroyer into a fast luxury yacht

Is converting a J-class destroyer into a luxury yacht too impractical to consider?

Not necessarily; it could produce a fast, sleek yacht, although accommodation choices and the destroyer's unusually large crew requirement would constrain the conversion.

A J-class destroyer conversion is possible and would bring a fast, sleek hull form. The available space might support boats and other leisure equipment, though perhaps not every feature expected of a modern superyacht. The converted destroyer would probably require a much larger crew than a survey-ship conversion. The thought experiment becomes a comparison of machinery, accommodation, and operating-cost tradeoffs.