At a whopping $152.5 million, an oceanfront compound in Sagaponack is out to set a new record for Hamptons’ home prices — and would do so as a relative peanut among East End megamansions several times its size.  The 39 Fairfield Pond Lane property, delivered fully furnished, sits on one of the priciest streets in the United States and was listed Sunday by billionaire hedge fund manager Zach Schreiber. The PointState Capital founder spent $24 million for it in in 2013, deed records show. Should