What if the nobles rebelled in earnest?

So a fun shower thought I had the other day: A very implausible(downright impossible) scenario where assuming the nobles all colluded to attack the palace with Kelsier and crew with all of their allomancers and Mistborn with their Atium, would they have been able to overthrow the Kredik Shaw by force without fully knowing Inquisitor and TLR weaknesses?

I’m assuming there’s dozens of Mistborn nobles in Luthadel (don’t think there’s any indication of number but I’m doubting there’s more than a hundred trained Mistborn active), hundreds to thousands of allomancers and ordinary soldiers.

What are your thoughts?

(Tagged HoA to for entire Era 1 to be included)