I seem to have reached a point where I can only deal in sarcastic hyperbole when it comes to Lukaku. Sorry about that.
However much Everton get, it'll be enough to keep them in the market for strikers that score in the region of 15-20 in the league.
Even if the new forward scores a few less, there's every chance he'll do a better job leading the line and bringing others into play. Obviously there's always an element of risk involved with any big transfer, but I'm really not worried at all.
I have also said your last point. If we sign a striker who scores less but works hard for the team and leads the line it'll make up for less goals.