Agree with large parts of your post. I don't think Lukaku will quite be at Torres level - I actually think he'll put up close to 20 goals in the league, but I'm unsure about how large his total contribution will be.
I bolded Icardi because to me it's a mystery that with sums of 80-90 million being banded about there have been virtually no rumours about anyone trying to get Icardi, possibly the best striker that isn't impossible to get. Or am I just out of the loop regarding the new Inter owners and that they've publicly stated they won't sell him? For the sum Lukaku will seem to go for you'd think they would at least consider it. Wouldn't hurt trying.