The interesting thing in this scenario is that if units were lost and unrecoverable in large swaths you wouldn't have to worry nearly as much about matching the

The interesting thing in this scenario is that if units were lost and unrecoverable in large swaths you wouldn't have to worry nearly as much about matching the legacy system perfectly, accidentally tripping out adjacent units, or things like that. Transformer replacements might even be easy, we'd just take whatever we had and wire it up anywhere it fits and can provide meaningful service. I'd be more worried about the issues to the underground system (nearly 100,000 miles of cable and piping) once oil stops circulating for long amounts of time, generators, and battery systems.