I'm not especially good at this video business, so apologies, but I've rigged up a quick comparison of the Fiend fight audio vs. the Fiend orchestrion audio. There are additional differences in the rest of the chorus -- the recording cut out sooner than I'd have liked it to -- but there you go. As far as I can tell with a very inexperienced and unmusical ear, the chorus is the only difference between the two versions.
https://youtu.be/2y74wI8eelk
From what I can tell, the first chorus of Fiend is moved to the second for the Orchestrion version, and "Concede your mind unto the Fiend"(?) is moved to the first and changed to "Concede your place in history".