Bin Nafe was among the 70,000 fans as Inter did enough to see off Bayern Munich and win their Champions League quarterfinal.
On the agenda for the Al-Hilal supremo is Inter star Nicolo Barella, says La Gazzetta dello Sport.
Al-Hilal are ready to spend big to bring the Italy international to Saudi Arabia this summer, with plans to up his current €6m Inter salary to a stunning €30m.
But Bin Nafe won't stop there, as he is also interested in Inter Milan coach Simone Inzaghi. With Jorge Jesus a target for the Brazilian Confederation, Inzaghi is being considered at Al-Hilal as a replacement.
The Saudis are prepared to tempt Inter with a contract package worth €20m-a-year.