Since my early 20's I loved to cross the San Diego border into Mexico or take the cruise ships to ensenada for authentic tacos al pastor. Due to the increase in violence and craziness there now, I no longer go for taco runs. This is causing serious withdrawals. I was wondering if you guys could help me recreate something similar to this. But on a smaller scale, kind of like this. My idea is to pick up a 55 gallon half drum like this. Stand it upright with a heat element sort of like this( don't laught, I never claimed to be an artist) And use something similar to this(which I already have) mounted vertically instead of horizontal. My problem is figuring what to use for a heat source. Are there propane broiler type heat sources available that can be mounted vertical in order to make my taco dreams a reality?????? Sure you can do this horizontally over a gas grill but the trick to tacos al pastor is the pineapple slices that are often mounted above the meat. The juice drips down and does some carmelizing as the heat hits it. YUMM!!!!! Any input is greatly appreciated.