my cusk traps are simply a 1x3 board vee'd out on both ends to wrap the line on. 1 ounce weight attached to the end, 6 inches mono, and hook with dead bait. we just tie the line to the center of the board with the weight on bottom. they need to be simple as we leave them out overnight and they will get run over and stolen from time to time. theres no need to have a running spool on the trap and you wouldnt want one as theres usually lots of rocks in cusk areas. now i dont know if thats legal in your area but thats the standard setup in new hampshire