I am a new owner of a 1970 mariner 2+2, in the fall i sailed it a few times, and the day before i took it out of the water a side stay cable snaped, so i am currently installing new stays and and those spreader bars that hold the stays out , i noticed that the brackets wernt perfectly inline and there were pencil marks , that must of been from the prev owner, so to the point i need to find out the factory measurements of the mast and where everything is layed out so it can all go back to gether properly , any advice will be helpful Soule