Very expensive here!
Usually, it is between 10,000 -15,000 but then you have to pay more and more during the course of the case development and it never ends!
Even the translation of a single paper will cost you around 100 Riyals and whatever you submit to the court, you to have it translated in Arabic and it will cost you hugely!
Do not forget the language barrier, if you happen to be a non Arab National!
In the court no body talks other than Arabic language.