This is a confusing list. Are you listing the top ten most valuable attacking players or simply the top ten attacking players in world football? You have the five players below Ronaldo priced higher for example, as well as Aguero priced higher, but below Bale and Suarez.
Personally I'd have Cavani nowhere near either list. Off the top of my head, Muller, James, Isco, Lewandowski, Reus, Benzema and Costa should command just as high a fee and all our undoubtably superior. Then you have Robben and Zlatan who are better player, but won't go for as much due to their age.
On topic, I doubt we will sign a marquee, high-profile forward this season, but I would strongly expect it next season. Bale would be the obvious candidate, although I could see the chances of Muller joining enhancing. We don't stand a chance for either this window however.