Here are counters for the "Saruman-on-Steroids" in the 3-player game (a 3-(4)-5 Saruman counter with the reverse reflecting his 2-5 resurrected strength).
I have also added two 10-6 Warg units (along with sufficent breakdown counters) to give the Saruman player at least some cavalry(ish) forces in the 3-player game and, bring his force mix more in line with what he had in the story.