It looks like I'm wrong about being able to use the Big Joe Defector rack to lift the 2-Tier swing grate. The main grate will not line up with the notches on the on the Big Joe Deflector rack and the swing grate is too heavy for the Big Joe Deflector rack to hold.
You'll risk damaging your fire box notches by trying to force the fire box to support the weight of the swing grate on your Big Joe Deflector rack.
It looks like you'll have to buy a Woo2 or make something yourself to raise the grate on the Joe.
Super fast Red Themapen, Weber Platinum, Kamado Joe Big Joe, Maverick ET-732