I recently purchased a 1978 S2 6.8, I will be picking her up in a week or so, it has come to my attention that the spreader bars are missing. I was given some links to mast and rigging websites where I can buy replacement bars, but I have no idea what the specs and dimensions are, can anyone tell me where to find the correct size spreaders for the 1978 S2 6.8?Thanks!