My ex boyfriend and I broke up after a really big fight, he says that he isn't sure if he wants to be friends with me, or whether he will want to date me again and that he will need time, his friends got involved and think that I am not right for him, I know he feels differently but their opinions matter to him very much to him, do I have a chance at all?

Yes, you have a chance. Make sure you really want it. The friends won't go away, the issues won't go away, the fights will continue.

Make sure you REALLY want to stay on this ride.

If you guys start to date again you have to deal with the fact that his friends have a choice in his relationship and probably everything else. This isn't good for you!! Meaning that if his friends want to go out and hook up with girls then they will probably talk him into doing it. Don't take this the wrong way but his friends are going to play a big part in your relationship if you continue to have one and that can be a bigger pain than the one you have now. I think he should be his own man and date you if he really has feelings for you and not if his friends have feelings for you. Take it from somebody who knows what the friends can do to a relationship...