I really think that Haris will be a real miss, especially in the Test side. If you could somehow get Haris, Asad Shafiq and Shan to bowl 25 overs a day, you could go with 4 quicks. Haris really can keep a lid on with his left Armers.
Don't know if Fawad bowls much in Domestic.
Also, people suggested that Imam could play at No.3. But that would mean Babar coming down at 5, which is not the best use of your best batsman.
I actually think we'll see Shadab at 7 and (I absolutely don't want this) Faheem at 8. I'd rather they play Ehsan Adil at 8.