I bought a haul of spare H16 parts yesterday. It came with a roller furler drum and brindle wires(and the jib to fit it). I'm guessing the only other piece I'm missing is a swivel shackle for the forestry? Anything else I should know? I'm not sure I'm going to use it or not but want to know what I'm getting into if I decide to drop the mast and install it.