Faye OestmaunHome FactsMost popular modular home has about 1,100 square feet of living area, and the factory sells it to the local erector for just under $12,000, a survey of 403 manufacturers noted.Oestmann,WindhorstProfessional musicians and teachers Miss Faye Marie Oestmann and William David Windhorst will be married on February 18 in Chicago Heights.Their engagement has been announced by the bride-elect’s parents, Mr. and Mrs. Arthur Oestmann of Chicago Heights. Mr. and Mrs. William Windhorst of South Chicago Heightsare parents of the prospective bridegroom.Both Miss Oestmann and Windhorst are graduates of Bloom high school and the American Conservatory of Music. Miss Oestmann also attended Wheaton college, and Windhorst attended the University of Illinois.