Elegant ending without bloodshed

I read in the wiki that there is a very interesting ending - without a meat grinder in the final. Moreover, it is necessary to start working on it almost from the very beginning of the passage.
Spoilerhttps://wasteland.fandom.com/wiki/Showdown_at_the_Broadmoor
I want to try to pass with the final build of the game and all DLC.
Has anyone tried to play this?
I'm interested in this premise:
Spoiler You need the Gippers to still be alive so they send oil to Colorado Springs or send power from The Holy Detonation to Colorado Springs.
Does the second option really work with the Holy Detonation cult?