I left a comment with google drive that contains everything you need. Open the custom pantheon README and you'll know where to paste the global settings files.
this pantheon is almost perfect and it is really awesome watching a boss rush for modded bosses. all i would change is put 5 sets of bosses with a bench in between x 3 times (so 15 bosses in total) and then Pale Prince and Atomic Radiance at the end. With the goal being to start every set with easy modded bosses and move to more difficult ones. Same way normal pantheons usually work. And some other ones like Aspid Queen, Brothers of Battle, Nosk God, Daughter of Hallownest, Royal Dreamer could be included (if they work in this setting)