I don’t think it works (if it does to you, I believe you): if you remove the naming and the suit from EpIII, some events of EpIV appear to be incomprehensible (“Vader, who was a people of mine”, “now I am the Master”) instead of being mysterious. Hence, the reveal of the end of EpV wouldn’t still be a reveal, because the audience (let’s assume someone who has never seen the movie before) would easily guess it with all the elements found in EpIV:

“well, Vader was Obi-Wan’s disciple (IV), we know he was seduced by the dark side (IV), he helped the Emperor to destroy the Jedi (IV), he has killed Anakin (IV), but Anakin was killed by Obi-Wan (III), and moreover he seems pretty damaged under this suit (V), so… yeah, this dude is Anakin. Why make a mystery to the audience of something so obvious ?”

The best way to keep the reveal is the full machete order: 4-5-1-2-3-6 (or 1-4-5-2-3-6).