Newly on the market, this 314-acre property located on the south shore of Martha’s Vineyard includes a 5,600-square-foot home, 1,200 feet of private beach, a 35-acre freshwater pond for swimming and boating, a Har-Tru tennis court, a saltwater pool, a hot tub, and a one-bedroom beach house. However, buyers looking to create their own customized estate don’t have to purchase the $118 million compound in its entirety. A buyer might instead opt for the 100-acre lot on the western shore of Homer’s Pond for $31 mil…