Yes, he did fulfill the prophecies of the old testament, I posted either earlier in this topic o in another all the prophecies, but I cant find it right now.
It was actually prophecied that he would not be accepted by his own people.
He was despised and forsaken of men, a man of sorrows, and acquainted with grief; and like one from whom men hide their face, He was despised, and we did not esteem Him. (Isaiah 53:3)
The stone which the builders rejected Has become the chief corner stone. (Psalm 118:22)
So the problem actually would have been if he WAS accepted by all the jewish people.
at italy2
1.there are other options-he was a very clever man and knew religion was a good way of establishing order.
2.he was a very good liar
3.he was an ethical man and tried to use higher authority to back up his arguments
4.he had very mild delusions that were unnoticable and allowed him to see the world a different way
5.he never existed-but was created by the apostles entirely after the date of his supposed crucifiction(i know this is the least likely of the options talked about but still...+it would be very effective if pulled of right i.e we associate hanging out with someone good as being good and people would be keen to invent circumstances were they met him.)
6....cant think of any more 
anyway you can see there are other options
All of those except for 5 which you yourself acknowledged is a longshot, ignore the fact of all the prophecies that he fulfilled, Many of which were out of the hands of the disciples and him.
It was prophecied that he would be betrayed for 30 silver, and although that would be easy enough to do on purpose, the guilt would not have driven someone to kill themselves if it was a greater plan.
He was spat on and struck by the guards, scourged by the guards as well, crucified with malefactors. pierced through hands and feet , buried with the rich , the list goes on and on of things that were not done by the apostles, but done by people who had no association to him. It is all clear in the bible, and really just leaves it to if you believe the whole bible is true or not. It leaves it to faith, which is exactly where it should be left at..
