I have live trapped 30-40 a season in Eastern Wa. back a few years ago. I always used the top of a metal coffee can cut in a triangle, then punch a hole in the end with the sharpest point and use a good heavy duty fishing swivel and hang about 4-5' above your trap area 5-10' away- Cats hunt with there eyes a lot-"visual aid" to get them to your set. Then the best (for me), even if it's self made, is a cubby set, in your case a steel trap, even a 220 conibear will work great (watch out for the hounds though).... Then that's where a big piece of greasy beaver wired to the back works real well. I also would take unscented "used" cat liter and spread it inside the cubby for a confidence builder.... A few feathers around never hurt anything either....