probably many mods have already been done, hard to say without pics. but here a few early 5.2 mods.

- if you need to raise and lower the mast every time you go sailing you may want to fit the captive mast base for added safety

- if the alloy tube connecting the 2 rudders sometimes rotates and then binds during turns you might want to replace the older rotating joints with the later welded type. or just wind a foot of stainless lockwire around them so they stay at the best angle all the time