If noise is apt to be an issue, and your area is small, by all means choose the a "Tranquility" model.
Should include the fees at their appraisal. Anyone add insulation in the attic for warmth, why would you permit cold air to enter in the attic retain your home more fort? http://www.olangodito.com/bbs/board.php?bo_table=free&wr_id=5733647