Hi @jmangel and welcome to the Cafe forum - I hope you stick around and enjoy the various discussion threads.
When I was looking for existing transcriptions of Red Garland's piano part on this tune, I was sure that someone must have done it already, as it is such a great and well-formed part. The only
transcription I found was from a site called Tunescribers and that also included the Miles Davis trumpet part. If you buy their transcription (just under $10) you will see that it has twice the number of bars that most people would use - this makes it longer but possibly a bit easier to read.
In terms of the chords, there are lots of different sets for this great tune and even different versions for the Miles Davis recording. I think that the Tunescribers version has some errors and it certainly differs in places from those used in a book of Miles Davis solo transcriptions that I also have. My lead sheets used a combination of the chord changes from various sources including iReal, Real Books and an Aebersold book.
Rhys