I saw the mod using the Smokey Joe as the fire box and picked on up on Craiglist for 5 bucks!!! I haven't done the gasket or the temperature gauges yet but I did like the idea of using the grate for the water bowl as additional smoking area. I'm going to use 1/4 bolt for the water bowl supports and the new grill support but what's the minimum distance from the top rack? Since I have the of smoker/grill the biggest this would ever see is a pork roast. I like the idea of the second shelf for things like chicken, tasso and bacon.