Ok, concerning the negotiations that the Arab states are conducting. The main issue is the power distribution. Who and how will the power be distributed.
The power of physical violence is with the police. They are the only one who are allowed to use physical force. This means, that an uncorrupted and strictly national police force is paramount to construct. This means schools, proper procedure, transparency, good leadership.
Add to this, the judicial system should be defined by a proper system as well.
An idea is to make the judges chosen by the president, as in the US.
Judges are, traditionally, a conservative force. So good, honest, wise men are preferable.
Concerning the parliament. There is the theory of corruption of the state by too much liberty.
That is why it is made in three parts. Public part, ruled by the people. The upper house, ruled by the aristocracy and the president who are, traditionally, a king.
You may have a king, but then make sure, he is wise and good.
All this has to be implemented and overseen. I will help, but we also need a corps made up by someone who knows how these system are supposed to work.
Doing the first elections as the system is made.
G-d bless the will to make a good system for the Gazan Arab. May we find peace.