You really have a lot of the idea, to be honest. There's actually only two real layers here:
1. the reese bass, which is going through some high/low/band pass filtering to give it that vocal-y quality and being reinforced with a sine wave sub bass. this is the loudest element in the mix during the drop and provides the majority of the sound you hear throughout the drop.
2. the super saw, which is in comparison REALLY quiet. The biggest part here is getting the chord stacks right, because honestly this might just be plain old single-voice saw waves with no unison at all. Experiment with combinations of unison supersaws and regular saw waves, then try stacking octaves of chords (i.e. if you have an F Major chord (F A C), duplicate the F and the C up and down a few octaves to add some thickness. You don't have to duplicate the A, since you only really need one third to provide a character to the chord).