I think studded bricks would be perfect for BLR. It would add a means of putting bricks on there sides but not make it look unrealistic.
Here are images of studded bricks:
My idea on mounting bricks to the studs is with the wrench.
Using the wrench you could just hit the brick, choose the brick you want from a menu, and choose the bricks direction (N,S,E,W).
Also make it so only certain bricks are available from the menu. Don't have sound bricks or vehicle bricks.
What are your ideas/opinions on this?