I picked up a 5.2 with similar issues, no pivmatics but it did have a set of clamcleats on the tillers instead. Have ordered the new style Clamcleat Auto-Release Racing Mini CL257 from Murrays
will let u know how those work out. So far, I have replaced the tramp, almost every line, and every quick-release pin, PO had these pins on sidestays, forestay and boom, I have about 8 of these pins now. I did away with the bungees on the rudders, used 1/4" stayset instead and the clamcleat on top of the tiller arm to hold rudder, holds them nice and high too, will mount the new style pivmatics on the bottom of the tiller arm when they arrive. PO also did not have a decent mainsheet setup, had the 6;1 lower high profile blocks, but a double and a single upper block which does
not work, so a quick text to Pete Begle and used triple upper is on its way. The gelcoat has faded over the years to the point where the black undercoat is showing, kinda like the old patina, so will put a few layers of clearcoat on and keep its old look, like an old classic car with the rust patina, hope to have this N5.2 ready for the Muddy Waters Regatta to be held at Lake Carlyle October 2-4