I agree with the first one; Llorente, Soldado, Remy, Huntelaar, Lewandowski, Lavezzi, Rossi....those are, I think, near the upper limit of what we can get. Cavani, Gomez, Dzeko et al are out of our reach. If we are going for strikers, I'd also like us to have a look at Goran Pandev, Abel Hernandez and Seydou Doumbia- very good players and eminently acquirable.
The second one, not so sure about. We already have several 'set-piece specialists' at the club. Rafa, Modric, Bale, Kranjcar...the problem with our (generally) tinkle-poor set pieces is lack of practice, not lack of skill. Train our players up a bit more and we should see our set-plays improve rapidly. Indeed, we already are seeing that happening after just a few days of practice.
Edit; I'd also be happy with a permanent deal for Ade; better the devil you know, after all....