case question

read page 49 to 69, the case EMIRATES AIRLINE: A BILLION-DOLLAR SUKUK-BOND ISSUE1.
answer the question.
1.Why did Emirates choose this structure? Is it the right structure?
2.How should Emirates finance the next set of plane purchases, and subsequent ones to those? Create a financing roadmap for Emirates for its existing orders of A380 airplanes, taking into consideration the maturity structure of the issuances.