I have smoked sunnies in the past. I leave the body whole and put them in a salt brine with liquid smoke,water and a cup of brown sugar. I usually smoke for 2hours at 225 and leave in smoke for 5-6 hours. I usually tell it is time to take out when you grab the fish and try to break the coral fin by moving it from side to side. When the meat looks loose then it is time to pull them.