I've read Prometheus twice, I'm a Spanish speaker. It's a great book! Basically Vatican 2 is satanic in though and origin.
I think I have a tool from Google that can translate a whole archive from one language to another. Perhaps if some of of you are interested, I could translate the book into English. There might be some imperfections tho, due to a literal translation.
With regards Fr Calderón, even tho he's pretty much a philosophical genius, he's not consequent with his ideas. When he wrote the book in 2010, Fellay & Co were dealing with the sell out with the modernist. Since the book is super condemnatory of Vatican 2, Menzingen order him to put the book under a mattress and didn't give promotion to it, unlike Bishop Williamson does now which is kind of ironic haha