By Hadeel Al Sayegh and Federico Maccioni DUBAI (Reuters) -AviLease, a jet-leasing firm backed by Saudi Arabia's almost $1 trillion Public Investment Fund (PIF), has been holding talks with banks to prepare an inaugural bond sale, two people with knowledge of the plan told Reuters. The company has discussed a dollar-denominated debut with JPMorgan and Citigroup, said the people, who declined to be identified because the information is private. AviLease could raise at least $500 million from its debut ...