Tough
University - me.uk => I would never register a .me.uk no matter the keyword. Because they can only be owned by individuals, not companies.
Augmented - org.uk => not as precise as augmented reality, personally I think shorter is not always better, but maybe you have something else in mind. Augmented human beings ?
Highlands - org.uk => sounds OK for some tourist blog. Or some sort of official tourist board maybe.
If I had to choose which one to keep, that would be the third.