The sprawling Southhampton estate has hit the market for a whopping $175 million, The Post has learned — and its sky-high asking price not only makes it the priciest listing on the tony East End, but also across all of New York state. nnLocated on Jule Pond and built for the Ford family — yes, the car company — the property spans 42.12 acres and includes a massive 20,000-square-foot, 12-bedroom home.