I can answer that Kevin Prince Boateng 10 million pounds(sold to schalke) instead of lamela(27), get coentrao and ozil in the bale transfer and only get around 35-40 mil for bale. Ozil would be here so there is no need for other AM, just one for backup, sell the others to get some money in. The money would be more or less the same but the team would look like this :
-----------------Lloris (Captain)---------------
Walker-----Chiri-------Verts--------COENTRAO
--------------Paulinho----Capoue-----------
--------------------------------------------
K Prince Boateng----OZIL-----------Eriksen
-----------------Soldado-----------------
There's no way Ozil would come to us:
A) we're not in the CL
B) we couldn't afford his wages
Scum reportedly paying him £200k a week including appearances and bonuses according to some outlets, Wenger had to blow their wage structure wide open!
Coentrao apparently didn't fancy coming here either so think again. It became clear very early on that getting any decent players as part of the Bale deal was a no-go hence people questioning our relationship with R Madrid
So I think you need to rethink your alternative plan. PS Boateng isn't remotely a similar player to Lamela and isn't in Lamela's class as someone that watches a lot of Serie A