If Higuain arrives with Llorente, (I can safely assume that Anelka, Iaquinta, Bendtner are no longer with us), that leaves us with: Llorente, Higuain, Vucinic, Giovinco, Matri, Quags.
Now, one of Quags or Matri is highly likely to leave. Higuain would cost us around EU25m in transfer fee I guess and would have a salary of around EU3.5m net a year. If one of Matri/Quags leaves that could give us around EU8-10m in transfer fee if we are lucky.
So interms of net outlay? It would be EU15-18m.
Wages? Llorente I think will be on EU3.5m a year net as well - so both the new forward will have a collective NET wage bill of 9m or (EU18m gross wage expense for Juve).
However, Iaquinta is costing us EU5.6m gross (or EU2.8m net) and either Matri or Quags is making EU3.6m gross or EU1.8m net. Bendtner was also similar in terms of wages. In total there is a saving of EU6.4m net (or EU12.8m gross).
Overall our wage bill for the forwards increases by ~EU5mpa (gross).
We could live with that strikeforce.
However, if we wanted to upgrade it further by UPGRADING on one of Vucinic or Giovinco by targetting a support striker like, Suarez for instance, then that would cost us quite a bit unless we sold both Vucinic and Giovinco. Vucinic and Giovinco combined should give us EU20-25m, while someone like Suarez would cost us EU35m realistically. Wages for Suarez will be just under the total of Giovinco and Vucinic combined.
We could then bring in Boakye as our 5th striker. Traditionally the 5th striker should be a yound player and not a huge name.
Its hard to do, but it is POSSIBLE that Juve would have the means to have the following strike force: Higuain, Llorente, Suarez, Quagliarella, Boakye. Net Transfer outlay would be around EU25-30m and wage bill would be up by only EU5m gross. Definately possible but still unlikely as it requires Marotta to be able to sell players well! Not something he is good at.