It wasn't the size of the 1950s ranch house that proved to be the problem for the new owners. The couple bought the property in the older Milwaukee suburb of Elm Grove, Wis., for its prime location and large lot, wanting the space for their two young children. But the home's dated, dark, cramped layout meant an imminent ó and substantial ó remodel of the house, says Bob Prindiville, co-owner with Alan Freysinger of Design Group Three, the Milwaukee design/build firm the homeowners charged with the task. More