J., is there a pipe supply nearby? Have them sell you a piece of "drop". I'd go for 12" though, and put two layers of 1" kaowool, plus a really good coating of Satinite or whatever you like. Darren sold me some sort of Aluminum mix that is susposed to be good for flux control, that you might check into. Anyway, two layers of kao will reduce the forge to about 6" effective area, which is about what you're looking for. Thats how I build mine, using T-Rex burners. If I remember correctly, you use forced air though. You'll really be set up with a new forge and a new press! I can't wait to see what all you start producing later this year! You and Tess have really come a long way since you started, made yourself a great name.