Article from Old House Online written by Regina Cole: The lady of this 1790 stone Bucks County farmhouse has worked on many buildings, but when it came to remodeling a kitchen in her own home, changes frightened her. Recalling the family’s earlier work on the house, “I was young and scared,” she says, smiling. “We did the kitchen in 1990, but I could not bring myself to follow my designer’s advice. For the next 15 years I lived with the result. Finally, in 2016, I called him and said, ‘okay, I’m ready.’”  The homeowners are a retired physician and his wife, who owns and manages rental real estate. They bought the 4,000-square-foot house in 1987. On the tax rolls by 17…