you really think he can earn that much in his career?
As some on here are saying, if he can prove himself in this league to be a solid rotational stretch 4 with insane range that plays 20-25 minutes, he'll make 10M a year easy. This is the Euroleague MVP we are talking about - and - his game fits exactly what the NBA is now. He also doesn't appear to be soft. His ceiling is probably a starter, 3rd or 4th option on a playoff team averaging 12-15pts. That's 15-20M year territory.
Let's split the difference: 12M a year for 6 years = 72M plus his first (I assume two year) contract at around 8M a year. Call it 90M over 8 years. I think that's perfectly reasonable to expect, if he's able to do what it appears he can. His game translates. We shall see.