Choosing a practical modern pirate vessel

If the panel were forced into modern piracy after an economic collapse, which vessels would offer the longest profitable life?

The practical choices are inconspicuous, lightly crewed craft such as a superyacht or Chesapeake workboat, not a museum warship whose fuel, spares, and engineering crew would consume the proceeds.

A preserved destroyer such as Småland offers obvious combat power but is difficult to sustain. The superyacht answer prioritizes blending into likely targets, small crews, and the ability to board without advertising hostile intent, while a Chesapeake workboat offers a durable engine and spare displacement for equipment. USS Wisconsin demonstrates the opposite extreme: immense power paired with prohibitive fuel, spares, steam-plant, and personnel requirements.