Problem:
They will have to be on the south-facing side, where they are open to random pot-shots by south-living shooters.
Didn't Art Bell quit his radio program after claiming someone was shooting towards his "KINGDOM OF NYE" property?
Doesn’t the sun rise in the east and set in the west? Couldn’t you make the top in a saw tooth configuration with panels facing in both directions?
Put them on ground level on the north side of the wall.