Not too concerned about pump noise. My sump will set under the tank in the stand. My stand will have the bottom of the tank setting at around 42 inches. I am building my own stand, as I have to patch the bottom of the tank. I am thinking of doing a plywood bottom, as I am not sure there is any way to safely patch the crack in the tank, plus that will allow me to adjust where I want to put my overflows and returns. Thanks for the quick replys.