DULUTH — The Karpeles Manuscript Library Museum is seeking a buyer for its building at 902 E. First St., and expects to close the Duluth location permanently when the building is sold. The decision to close the museum was financial, said Cheryl Karpeles Alleman. She is the daughter of museum founder David Karpeles (1936-2022), a graduate of Denfeld High School and the University of Minnesota Duluth. After making a fortune in real estate, Karpele…