I have spoken to the landlady at The Dog and Gun (72 Keats Lane, Earl Shilton, Leicester LE9 7DR - 01455 842 338) just down the road from Mallory Park and she is open from 12pm and very happy for use to use the pub as a meeting place (I am sure there will be a bit of business in it for her ).
I am aiming for 2.30pm although might be a little earlier if all goes well (later if it doesn't go according to plan).