I had a standard Coleman gas one with a burner on one side and a grill on the other. It just broke so I need to buy a new stove and/or grill. If I buy a portable gas grill without a burner can I put a pot, pan or coffee percolator on it? Also, if I get one of these… Is it safe to use lava rocks or briquettes? Won’t this help with heat distribution? So far the Weber Go-Anywhere Grill looks like something that might work but I am not sure about the above questions. Thanks a ton!