Yes, before she decide that she would meet him, she most have thought about every possibility (and the possibility that he refuse her proposition most have been a top on the list).
You're right, Kishi make an opening for a more equal confrontation between them. Sasuke is not in the best of shape, witch probably mean that he won't use more powerful jutsu like Amaterasu because it take a lot of chakra. Even if he use jutsu like that, Sakura will still have the advantage because if he use jutsu, all she will have to do is dodge them until he's to weak. After all, let not forget the fight between her and Sasori. She also very good at analyzing the possibility of the fight, every overture that could lead her to win against Sasuke (of course, Sasuke is not an idiot but since he's not in a good shape right now, I think that Sakura will have the advantage over that point)