man those picture shure bring back some memories for me.... when i was about 7 or 8 years old we lived in Kansas and we had grey hounds we caught coyotes with ,we had what was known as a "shag wagon" a small 4x4 pickup with a flatbed with big dog box on top with trip latches on each side and a cable running in the cab,,,, we would cruz the feilds and back roads looking for yote's is one was spoted hiss the dogs and when they seen him pull the cable,, the door would drop and the race was on.. those dogs could jump a new barb wire fence and never slow down...
have fun with them ...
here is a pic i snaged from the net of a similar rig
