my daughter and son in law picked up a 1973 O'Day Day sailer II. Trying to help them set up the rigging but so far have only been able to find a guide on line back to the 1974 model.The rigging was changed in 1974. Does anyone have any suggestions or information on where to locate some instructions on setting it up. Most of the rigging was with the boat but it appears that some of the boom vang hardware is missing.Thanks. Took pictures of some of teh hardware .