Autumnfall,
Wow! I am so sorry you're family is going through this right now. Is she being manipulative? Possibly. I think that manipulative talk needs to go on the back burner for now and you need to just deal with the reality that your daughter took 130 Prozac. That is a lot to take in and I'm sure you must be shocked and hurting right now. What are you doing to take care of yourself?
I don't know if I would view your daughter as holding a power over your heads by wanting to die. This is her reality and her feelings. Yes she has all the power because you must live every moment fearful that your daughter wants to die. I'm in the same boat. My dd16 also has suicidal ideations and says she wants to die. We have had 2 suicide attempts and I also live with that same fear.
I have some other thoughts but I forget how old your dd is now. My dd also has been diagnosed with bipolar. The thought is that we focus on the BPD and a lot of the bipolar symptoms will also decrease (we've seen that).
I imagine it does feel awful to talk about your dd and wonder if she is manipulating you. Suicide attempts are probably the most confusing things I've had to deal with. Emotions are off the chart and all over the place. I remember the last attempt my daughter made. She was able to walk so we took her to the er. DH was yelling at her the whole way because he was so angry. I was crying because I felt so hurt. For me, the attempt really felt like the biggest "screw you" ever. Fortunately she claims not to remember anything from that day after she took the pills.
Now you have to answer the question... do you still want to take the job? That's an extremely personal choice. I personally would not take the job because I wouldn't want to live with the guilt should dd be successful in her attempt next time. I am a classic rescuer tho. I wouldn't take the job if I thought I could prevent dd from stubbing her toe.

Working on it... baby steps and all that. Others may take the job, and have a plan in place, because it is what they need for themselves. There's a lot of merit to both positions. What are your initial feelings and thoughts?
We're here for you. Keep on posting and venting and dealing with all those feelings.
-crazed