I actually think its more like 7 we need based on the likely outgoings: 1 x top striker, 2 x wingbacks, 1 x CM, 1 x AM, 1 x CB and 1 x GK.
Based on yesterday I wouldnt be surprised if Zirkzee starts playing as an AM regularly. I also think we need two wingbacks unless we see the Paraguayan kid coming in straight away, and another AM as I see us parting ways with Garnacho in the summer.
Cheap / Free signings we can look at across those positions:
ST - Jonathan David (I personally think we need better but he's an option)
WB - Lamptey, Reguilon, Walker-Peters (all quite underwhelming but no worse than Dalot)
CM - Angel Gomes, Anguissa, Norgaard
AM - Angel Gomes, Nypan (10-15m), Bardghji (10m)
CB - Ola Aina (could play as a wide CB), Jonathan Tah, Boscagli
GK - Kovar (buy-back)
If we can get at least 3 out of the 7 signings needed from this pile, with the other 4 ranging between £30-60m we can certainly do the necessary business IMO.
My personal picks would be Lamptey or Reguilon for WB, Anguissa or Angel Gomes at CM, Boscagli at CB (as Tah feels unrealistic) and Nypan or Bardghji as AMs
Lamptey would partner Mount perfectly, as a crock.