Can you list the 'eight ministers' and 'divine gems' that are said to serve and adorn the Guru-King in Chapter 16?

Certainly. Chapter 16 poetically describes the virtues and practices that constitute the Sadguru's inner circle. The "eight ministers" who are constantly engaged in his service are listed as: Detachment, Devotion, Pure Knowledge, Hearing (Shravan), Reflection (Manan), Meditation (Nididhyasan), Self-investigation, and Realization. In addition to these ministers, the chapter mentions the "divine gems shining as ornaments around His neck," which are identified as Peace and Self-control. These personifications illustrate the qualities that define and surround the enlightened master.