I disagree, the bacteria rich live sand is not as good as reef sand you get from SWF...but it's it's still better than dry agragonite sand. Don't get crushed coral. Dry Aragonite sand is just fine. No matter what you use, you still have to cycle the tank, there is no getting around that.
Rocks go in first and sand around it...You should not build on shifting sand, you can crush critters, or have a rock slide that breaks the tank.