Good sites with helpful information:
Ed’s Cooking & Barbecue
Cooking Tips, Barbecue, and some plain old Common Sense.
how to build the roaster, and more – lots and lots of details and photos!
A fella on the egghead forum used 2300°F Resbond™ 907GF Adhesive & Sealant to repair his Big Green Egg cooker:
My firebox arrived in five pieces about two months ago. I ordered some Resbond 907GF Adhesive and sealant putty from WWW.Cotronics.com. It’s non toxic and good for 2350 F degrees. It comes in dispensing tubes, or caulking cartridges, is relatively cheap and arrived amazingly fast from the supplier. Still holding up great. Quite amazing if you had seen how badly broken up my firebox was.
Hope this helps