You may or may not care for "Godspell" -- for what it's worth, I'm rehearsing it right now. But before spending fifty dollars on this book, you should know that, despite the fact that it's been in print for 30 years, it is full of flat-out typos, misspelled accidentals, mislabeled parts, unexplained divisi, and other musical grekh. The publisher should be ashamed. If you plan to use this book for a performance, be prepared to spend many hours correcting it before rehearsal. (It is also often musically different -- even in the melodies -- from the Original Cast Album, but I don't know who was responsible for that.)
As an example of how slovenly the engraving is, consider the word "Stained!" in "We Beseech Thee". In the first place, it doesn't read "Stained!", it reads "Strained!". But, more than that, it's on two notes, so what the score is actually telling you to sing is "Strainèd!".