Who would fix them?
Not only are MGD and the Gem right about the crew, the UK has no suitable organisation to take charge of the airframe and ECU modifications. AugustaWestland would, with maybe some justification, point out that almost all of the airframes were at different builds because of the state the aircraft were in when the cancellation was issued. Even if AW had space on the re-construction line (a big if), I suspect that the MoD would be invited to consider 'cost-plus' just to get the VH-71s to a baseline.
If no one is prepared to own the task, don't start it. Sorry to be gloomy.