Hello,I just bought an S2 5.5 grand slam.Sounds like a fun ,exciting boat.Unfortunately it came without a rudder among a few others. It is also missing the masthead,although there is a pulley up there for the halyard or is that the line to hold the end of the boom or both? As it is a rare boat(70 hulls)i am having a hard time finding any info on these parts. I may have to build a rudder assembly unless I can find an appropriate replacement to retrofit to this boat. Any info on the rudder from a fellow owner would be greatly appreciated,mainly the amount of rudder below waterline,width of rudder,pics,etc. Thanks Much