Horizontal long wire MW aerial.

[Crackle]

Change of mind, I may be able to rig a new aerial without any ladder work.
If I could throw a line over the house and back around the chimney and erect a 6m wooden mast in the garden.
Please can you advise on the best dimensions for x and y.
The earth rod will need to be clear of the concrete path at the back of the house.
Will an earth such as this be of any benefit?
I only want to use it for MW LW and occasional SW listening.

Thanks
Mike