We all have our head cannon; I think the whole scene would have looked better as Vader is "reborn," stumbling off of the table, WITHOUT his full attire.
Still have the faceplate, but without the dome.
No cape.
New torso, but artificial legs and arms exposed without gloves or boots yet.
He would be more Frankenstein monster-ish, more gruesome and incomplete.
And there was NEVER a need for the "Nnnoooooo!" scream. Just have Anakin's reanimated corpse standing in front of Palpatine for a looooong beat, completely quiet except for the mechanical breathing. And then... the room is ripped to shreds piece by piece by his anguish and rage, as we stare as Vader's skull-like faceplate, while Palpatine cackles in the background.