Based on the provided text, what were the various contributions and interactions of Gopalrao Gund in Shirdi?

Gopalrao Gund, the Revenue Circle Inspector of Kopargaon, was a significant devotee whose story is woven through several events in Shirdi. According to Chapter 0, he first came for Maharaj's darshan and was blessed with a son despite having three wives and no children. Motivated by devotion, he sought to rebuild the dilapidated Masjid and collected stones for the project, but Maharaj redirected these efforts. By Maharaj's command, the stones were instead used to build a Shani temple and renovate other local temples. Furthermore, it was Gopalrao Gund who initiated the idea of holding an annual fair (Urs) in Maharaj's honor, a tradition that continues on Ram Navami.