If its Hernandez Id be spectacularly underwhelmed, especially if he is our main striker. For a start he just wouldnt fit the system we tend to employ. Secondly apart from his first season at Utd has been a bench player, coming on late to try and nick a game. Thirdly I think he is vastly overrated, which means high wages and fee for what is essentially a player that doesnt deserve it.
For me Id take 30m straight up or even try and nick Welbeck plus 10-15m for him.