I think its pretty obvious what Suarez was saying and you don't call someone by an affectionate nickname time 7 times, especially when you're currently involved in a petty 90 minute spat/ argument etc. Moreover, I find it hard to believe that in his time at Liverpool, Suarez didn't once refer to Johnson or any of the other black players in Liverpool's squad as Negro in a 'playful way', where he would have, without doubt, had it explained to him that this isn't done in the UK.
I don't think Suarez is a racist. But I do think he used a word that he thought would rile Evra up.
Anyway, in terms of ability, of course you'd take him, he's the 2nd or perhaps 3rd best striker in the league. He has an insatiable desire to win.
However, this is also a bit of a negative in him. He will do literally anything to win; dirty challenges, diving, kicking, biting, appealing even when it is him that has committed the foul. I think your hypothetical is interesting but it is also a dream because you cannot get Suarez the player without the utter taco he becomes on the pitch. I do not think I could defend (or would want to defend) Suarez if he played for Spurs.