Wall mount to go across alcove?

[Matt..]

Can anyone recommend a wall mount to go across an alcove? This seems like a simple ask, but I'm struggling to find anything suitable. I want the space behind the TV to be clear, so don't want to have a mount coming from the rear.

I kind of want something like this:


I was struggling to find anything, so have been thinking of just making it myself, hence the model.


Thanks

[Alucidnation]

Mount to one wall, position will need to be worked out..



https://www.avinstalls.co.uk/swivel-and-tilt-lcd-p...