DETROIT — How do you bring together 74 Vincent van Gogh works worth millions of dollars from museums, foundations and private collections all over the world for one massive exhibit at the Detroit Institute of Arts? Carefully. Very carefully. As the highly anticipated “Van Gogh in America” exhibit opened to the public on Sunday, all 74 works were in place for visitors to admire in all their beauty. But to get them there, each museum or collection sent its own “courier” to personally escort the work to the DIA. Works were sent from roughly 60 locations all over the globe, including Paris’ famed …