I have that exact same thing. Paid $225 for mine, used, but in new condition.
That diffuser box is a great thing. I still don't use the bottom rack much though as it runs about 100 degrees hotter that close to the FB. Congrats on the new addition to the family!
Big JT's Smokin' BBQ Competition Team
“If we could change ourselves, the tendencies in the world would also change. As a man changes his own nature, so does the attitude of the world change towards him.
We need not wait to see what others do.” - Mahatma Gandhi