Remix to mount from the side.

Hole distance is exactly for IKEA Platsa on the backside. But don't ask me for screws, I had some screws left which fit somehow.

Lay it down to the side (yeah I know it would be better if it's already on the side ;-))

Also there is a small gap because of the chamfer of the original design, but I was to lazy to fill it up. Also I don't dislike it.