The SR600 I'm participating is organised by Saitama Audax and the official name is Super Randonee Fuji. There are two categories, Randonneurs and Tourist Cyclist. Randonneurs limit time is 52 hours and for Tourist, the minimum requirement is to cover a distance of 80 km per day. I registered for the Randonneurs Category and the total climb for this event is around 11,105 meters.
Not sure if I can finished under the time limit but worth a try.