[Here are the final steps of building the ribbon burner forge. First is cutting the high alumina kiln shelf to fit the floor of the forge. This is done with a diamond bladed skill saw.
Next is coating the entire interior (including the kiln shelf) with Plistix: a product similar to ITC-100 (only cheaper), that acts as a highly efficient re-emitter of infrared waves.
Finally, the plumbing is the finals step. A brass coupling is brazed shut on one end and a 1/16" hole is drilled through the center. This piece is then brazed into a hole drilled in the side of a 2" pipe nipple. This allows for a port in which the propane can, with a high velocity, enter the air pipes. A needle valve (for micro adjustments) followed by a ball valve (as a safety shutoff) are added behind the port. When assembled this will be connected to the 1/4" propane hose and regulator.
[EDIT: I've since discovered that the 1/16" hole is redundant with the needle valve and is actually bottle-necking my potential propane. For this reason I will be drilling out this hole to 1/4" diameter]
The final step will be assembly of the air plumbing and after that... firing it up! Photos to come shortly.