So, the way I see the complex solution we can offer is:
1) FSB as a temporary solution. It can't be a permanent one as it creates dependency on Molly on an institutional level. This needs to be acknowledged. Wizards can work on finding their own solution that's not murder if they don't accept anything else. Like Doom of Damocles, only better. Should be doable at least for some.
2) Exalted craft. Both as specific solution (Books of Law), and as a general "come up with an idea, I will most likely be able to make it a reality if you bring me enough dead bodies of ancient monsters". Speaking of, making a dedicated spirit to handle healing might work.
3) Pigeon familiars. They act as a buffer against corruption, and are self-perpetuating. It's a solution that doesn't require the council to rule through tyranny, which is important.
A combination of all those should be mentioned. Our proposed plan should offer options, should be flexible. From "you trust me unconditionally and get me all the resources I ask for" to "there's no trust, and you are opposing me". Because realistically the council cannot really afford to stop pigeons from being resurrected.