I'm curious, is there any real benefit to convincing both Doria and Alam besides just their individual scenes? Doria seems to overwrite the robbery scene regardless of order, assumingly because she limits the amount of gold you can take from Fahda.
I don't know if this is too complicated for the game you want to make, but I'd enjoy if Alam and Doria had individual bonuses, so Alam would increase gold production or reduce building costs and Doria would provide a military boost. Also since I always love getting the best route possible, I like the idea that if you only drug Fahda *and* convince both Doria and Alam to come with you, that you can later get her onto your side by both her daughters helping convince her. Long-lasting consequences for choices always make you feel more involved in the story, regardless of the story in question.
I know this is quite a long comment, but I was also curious if Doria/Alam will have more scenes in the future depending on whoever joins you? Either way, definitely a good game, interested to see where it leads.