Tranny Swap questions

Craig, I don't have 1st hand knowledge, BUT I remember helping Ed/Nitemoves and it was a bit of a guessing game, not knowing where some of the parts came from.
I checked my parts manuals and I see NO different parts listed in your case from 904 vs 727.
Pettybludart runs a 904 in has race car with NO issues. But his aint stock by any means either.