Cavani and Neymar. Can play neymar pretty much anywhere, same with cavani. So much depth there. Or you could also go for Bale/Holtby.
If you wanna be a complete monster, get the most expensive player you can find bar ronaldo/messi and then sell him.
Say you got Neymar, then sold him for 50M..You can build a righteous squad with that amount of cash.
I wouldn't bother with wilshire, you can buy will hughes from derby who pretty much bosses midfield and can be bought for about 5m, wanyama would also be good but you can buy him with your transfer budget (over 4 years)