Thinking realistically in an unrealistic scenario...
I would go for the New Den. We almost ended up groundsharing there before Gillingham. It was predominantly the fact the Police match day controller had stepped down and a new guy was in place that put the mockers on it. They didn't want the new guy to have a game every week to police as opposed to every other, plus all the obvious groundshare complications that affect the police. Reasonably simple to get to and easily adequate capacity wise. It would mean money for the landlords (they were keen last time the idea was muted) so should be a workable idea as long as the police and authorities were happy this time around.
I would go for the New Den. We almost ended up groundsharing there before Gillingham. It was predominantly the fact the Police match day controller had stepped down and a new guy was in place that put the mockers on it. They didn't want the new guy to have a game every week to police as opposed to every other, plus all the obvious groundshare complications that affect the police. Reasonably simple to get to and easily adequate capacity wise. It would mean money for the landlords (they were keen last time the idea was muted) so should be a workable idea as long as the police and authorities were happy this time around.