As for the burner and what is needed. Based on the info i found and by using my burner in my smokehouse, I think this burner may be a bit over kill. You are not trying to heat a large cubic area, but you never know.
I went to the Bayou Classic Web site and found this:
[h2]Product Description[/h2]
Bayou Classic High Pressure Cast Iron Burner 10"D x 15"L,
Most powerful burner available
Includes: Air Control Disc, Brass Orifice Connector (3/8"), Flare Fitting
Must use at least a 20 PSI Regulator
Same burner as the Banjo Cooker(KAB4) & Bayou Cooker(KAB6)
*The BTU's produced by this burner is determined by the Regulator used with this burner (combined with high PSI regulator can produce 210,000 BTU's)
I would use this hose/regulator assembly:
Bayou Classic 0-30 PSI Reg, 48" stainless braided hose
It is adjustable pressure, so there will not be a need for a needle valve.
I put a needle valve on my setup for my smokehouse and eventually went to an adjustable regulator.
Be sure to take pictures and post what you do and how it works out. We all like to look and learn.
Jeramy