After doing some reading, I want to build a cheap and simple pizza setup on my 22" kettle. This is all theory at this point, so let me know if I am going off in a silly direction.
I found a lady on eBay selling 14" 3/8" 304SS plates, and I ordered one. It was only $45 delivered, and weighs something like 16lbs. I am going to use my grinder to clean up the edge and cooking side. This thing should not cool down much when you put cold dough on it!
I got some firebricks from a local brickyard for $1.60 each.
My plan is to remove my cooking grate, and set 4 bricks up on end to hold the steel plate, it will be 9" above the coal grate and about 2" above the level of where the cooking grate would be.
I was going to start by dumping the coals directly under the plate, and cook with all vents open and lid closed.
The thought is that the raised steel plate will stabilize at a nice high temperature, as well as have a hot air space above it since it is raised closer to the top of the lid.
Here is a photo of my (uncleaned) plate:
Questions: should I shift the plate forward, and cook more indirect, or should I make a pile right under the pizza stone?
What is a good oil to season the SS plate with?
ETA: Here is the source of the 3/8" 304SS plate:
http://www.ebay.com/itm/1-pc-3-8-INCH-X-14-INCH-304-STAINLESS-STEEL-ROUND-DISC-PLATE-/272744241710