Jeff's website is www dot thepizzahacker dot com
Also search on "frankenweber" and "pizza hacker" on YouTube. There are at least four short videos showing brief views of the Weber in action. Use the back and stop feature to get a good look at what he's doing.
Jeff is in the process of commercializing the FrankenWeber and will have a completed unit or kit available soon.
Meanwhile, I have a great Weber 22.5" kettle conversion made by Al Contarino who is currently selling them on eBay. I did a slight mod to mine by making a metal dome to set lower, but above the pizza, than a stock Weber dome. It reflects heat to the top of the pizza. Al's conversion ring cooks good pizza on the grill just the way it is. I do use kindling of hardwood to add heat and flavor. When the thermometer gets to 700 deg "things really get cooking". The temp climbs when the kindling starts to flame. That is a critical time and I am always in awe when I see the dough puff and the cheese start to brown. It will get hotter than 700 deg but I don't want to mess with success. The conversion doesn't use firebrick or gimmicks. Al recommends an aluminum pan. It cooks pizza on a grill, in a hurry.