Wow cool, maybe he gave you unconcious signals that you interpreted into making this mod? I mean your idea does sound alot like the book only not as organised or believable
but anyway if your going to make a canticle for leibowitz mod ill help as i can, ive always wanted to see something like this get done.
As i said b4 its one of my favorite books. 
this might be good for one of those flashing sig banners
“A spiritu fornicationis,
Domine, libera nos.
From the lightning and the tempest,
O Lord, deliver us.
From the scourge of the earthquake,
O Lord, deliver us.
From plague famine and war,
O Lord, deliver us.
“From the place of ground zero,
O Lord, deliver us.
From the rain of the cobalt,
O Lord, deliver us.
From the rain of the strontium,
O Lord, deliver us.
From the fall of the cesium,
O Lord, deliver us.
From the curse of the fallout,
O Lord, deliver us.
From the begetting of monsters,
O Lord, deliver us.
From the curse of the misborn,
O Lord, deliver us.
A morte perpetua
Domine, libera nos.
“Peccatores.
te rogamus, audi nos.
That thou wouldst spare us,
we beseech thee, hear us.
That thou wouldst pardon us,
we beseech thee, hear us.
That thou would bring us truly to penance,
te rogamus, audi nos.