Retro fit brick lights in rendered block wall

[Abyone]

I'd like to install some recessed brick lights in my wall in the rendered section under the cedar - see photo.

As far as I know it's a cavity block wall.
Wondering how easy or difficult it would be to cut out the recess for the light - and wire up from ground level. Presume I'd have to get the whole wall rendered afterwards ?
Is it too much hassle ?

 

[jj4091]

Why not just use surface mounted ones there is plenty of choice.

 

[Abyone]

Yeah I didn't see any nice ones - They all look a bit chunky compared to recessed.
But if I see a nice wall mounted one I'd consider it.