[Closed] Adjustable angled ceiling brackets for sliding door track?

Hi all,
I am supposed to be building a built in wardobe tomorrow and thought I could just rock up to Homebase and grab some angled ceiling brackets that I had seen on their website, but appears they are delivery only 🙁

Does anyone know where I could get similar thats open on a saturday morning? Glasgow area?

[url= http://www.homebase.co.uk/en/homebaseuk/angled-ceiling-bracket-306542 ]Like these[/url]

Or would it be easy enough to cut angled blocks to fit the track and facing to. Only issue I see with this is not having any adjustment up and down as you get with the brackets, so dont know if I could get the track even enough.

Any help appreciated!