If it was £4,000,000 then no way. He's been out of action for too long and it's too much of a gamble, the only way that I'd see us getting him would be on a free. If Moyes says he can't pay £11m for Donovan then put the £4m towards Smith, because I'd be fuming if we payed that for him.
In Moyes we trust - but please, just no.