Hello,
According to my research, his aircraft is owned my a company called Paysmart Payment Solutions located in Denver, Colorado. The tail number your provided, N311RN, is registered under a 1974 Mitsubishi MU-2. In April of 2010, the airplane was for sale. After over a year on the market it was purchased in July 2011 by the current owners now, Paysmart Solutions. The airplane has been photographed several times at KFTG airport, located in Colorado. It may be based at this airport but I highly doubt it. Here is the address of Paysmart: 820 S MONACO PKWY DENVER, CO. I'm not sure if this is still the current address but send gem a letter and get in touch with them. I hope this helps.