I just bought a 1981 Oday 28, and the mainsheet is toast. It's over 80 miles away from me, and I forgot to take mainsheet off of the boat to measure. Does anyone have a length measurement of the mainsheet? Also, any suggestions on the diameter? I was considering 1/2" Sta-set or comparable. Lastly, please advise if you know of somewhere out there in cyberspace is information on ALL of the running rigging specs. It would make my ordering a ton easier. Thanks.