The kj bracket goes on the firebox
In goes the deflector
Then I set the grate on top
Here is a pic to give you an idea how high it sits. On this particular cook I got two pork butts, 3 racks of spares and 3 racks of baby backs. It was tight but the lid closed and all food smoked/cooked prefect.
Btw I prefer the KJ deflector. I'm not a fan of the Vision stone.