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
BGE's/WSM's/BWS Gater/BDS Clones/Weber Performer w EZ-Que/Cajun Bandit/Rib-O-Lator Test Pilot/La Caja China/BBQ Guru/Weber 1000 RK Drum Coffee Roaster
Follow Left Hand Smoke on Facebook!http://www.facebook.com/pages/Left-H...462391?sk=wall
KCBS CBJ/PNWBA CBJ www.pnwba.com