I converted my 14" WSM to propane using the burner from a Brinkman table top grill. Works like a charm. No muss, no fuss. Pulled pork at 1 hour per pound. I have pics I can share if anyone wants to see them. It's a shame Brinkman bit the dust. Glad I bought 3 of the grills. I can make two more {Rev B and Rev C?). Latches for the bowl/tube/lid to make it truly portable. I have a prototype cover that locked the pieces together (used to work for Weber (26 years)). Showed the R&D management what I had done. Not interested. (Not invented here, you work for IT not R&D, you are not an engineer, and we didn't think of it first). Screw them. How's that SmokeFire POS working out for you? (Sorry for the mini rant)
Next project is a propane powered 22" WSM on a Performer cart and using the Masterbuilt Thermotemp Propane Smoker's control valve.
Should be fun.