J-Rod,thanks for pointing that out! I missed that because I was so enthralled with some of the other photos. It is a very cool modification.
Trumpstylz, for the charcoal and wood crowd, either the Kettle Pizza insert with the Serious Eats hack or something similar to Moose's modification would work but no cutout and propane ... only wood and charcoal, just not for quite the same duration. It will need to be reloaded with fuel and wood after a few pizzas.
Another Tandang Overseas - Weber 22.5 OTG/Smokenator 1000/Pizza Kettle - 2 Thermapens - Mabuhay BBQ