I am looking at getting an AR when i get my tax money back, and i am not sure about what i should do. I am only looking to spend about 800 or less if possible and i know that building one is cheaper, but i dont know what i need to get. this would be my first AR, and i want it to be for coyote hunting. i would like one that is a .223, and be able to put a scope on it for hunting in feilds which is how i do most of my hunting. would building one be too hard to do for beginner, and what tools would i need and what brands would be reccommended? i would also prefer a collapsable stock.