Just to try to answer the two points raised in this post.
All up and down the Country a County FA Competition takes precedence over all other Competitions other than National FA Competitions so it isn't just Cheshire being awkward (although arguably they will be if we ask to move it)
The Wrexham match has been moved to a noon kick off on Police advice. I know that there has been contact between Nottinghamshire Constabulary and all the other Police Forces with sides in the Conference as Mansfield have a reasonably large 'risk group'. Hence I would imagine that were the Mansfield fixture moved to a Saturday then it may also have its kick off time changed. As it is I anticipate Police 'interest' even in a Tuesday Evening fixture