What stack do I need to deadlift 1,100-lb? 
Get your body weight up around minimum of 350lbs to 420lbs +
Take Vast amounts of PEDs / painkillers / Cocaine dedicate yourself
For 18mnths working on your Dealift & see how that’s Goes.
You may very well not deadlift 1100bs only you’ll most certainly Deadlift
A Whole Lot More Than you currently Do.
Good Luck. & Let us Know.