Wow! I didn't think anyone would take the time to dive into the Imperial Kamado Shichirin link! But hey, Kudos to you! But I think the Shichirin is basically a Hibachi type grill for High and fast grilling. It sounds like what you are describing is more like the instructions I ran across for building jewellers furnace using refractory cement on a larger scale.
I'd like to see you do it if you have the capabilities, I just don't see myself getting rid of my Egg or Drum.
Knock yourself out and take lots of pictures!
Brian - Left Hand Smoke BBQ PNWBA 2010 Team of the Year
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