well it is actually fairly simple. the only thing i am not sure about is on the nbs is if it has the same thing mine had. which is a plastic seal that is has to be heated out with a torch. then all you need is a hammer. to beat the end caps in. if it is the same as mine which i am pretty sure it is and the clips go on the inside but they only cost like 12 bucks a piece or so i think but nothing to it really.