damaged corbel bricks

[beaumontnz]

I want to do some repairs to some brick corbels that form a horizontal band around the house.

it will all eventually be painted,as the top half is render and the bottom brick.
All I want to do is form a continous line with the corbel to make it even,as thet are about 6 or so broken.
What will I need to use? Will weak sand and cement bonded with pva work,or do I need some different combination all together?

Appreciate your advice.