Hi Guys

Should read - Locking wheel nut key. Edited but does not change title.

Apologies if this is an old question, but could anybody give me advice on replacing my locking wheel nut key?
It was lost before we got the car and the previous owner does not have it.
The kind of locking but is like the one in the photo, but it's not a photo of the ones on the car.
I think they are also used on X Types.

I see it is possible to buy a master set, but clearly, I want to avoid that.
The car is not drivable as it needs the brakes repairing first, so I am unable to take it anywhere.
Thanks in advance.
James