Just make it blockhead interior size.
That's good enough
That's actually how I wanted it to be anyways..
Of course Being extremely small in the mall would have to involve something like "Mall part 1, Mall part 2", due to mapping limits.
Building would take a while and you can't choose which texture the brick is unless you have millions of prints, also you can't rotate bricks halfway, only by 90 degrees each time you press the rotate key.