just use the tip of a craft/stanly type knife ..in just under the sternam and down 4-5 inch....index finger and thumb in behind the stomach but not the liver if it can be helped ...then drop the lot out...
skinning......pull the belly fur away from the belly skin..then put a knife in up threw the fur and pull towards you.....then using both hands the skin pulls in half one going to the head and shoulders...the other to the hips and back legs....I pull the rear leg fur off first ...but leave the rear feet till last as the front end is the akward part ....old bucks and young harvest rabbits