I remember my first boat, a c&c 33 , wonderfull boat, sail fantastic, there is some points to check very carefully in a c&c .
to hull joint , many c&c are prone to keel
2 the status of the core
in hull and deck
, c&c have cored hulls and decks, check for delamination
and moisture content specially close to the keel.
3 bulkheads, because c&c use second liners in the structure and bulkheads are secure in the liner slot, flexing and a hard sailing past made the bulkheads to move out from the slots, chainplates in c&c are secure to bulkheads to, check for rot
wood in this areas.
The bilges in some c&c are flat , standing water in the bilge
, close inspection
to the mast
base and bulkheads in contact with bilge
4 Rod rigging
is another feature in c&c , and here the same , close inspection and if the rigging
is 5 years old my sugestion is replace the rod or change to wire.
Here is some points to remember in a c&c and i talk under my experience with a c&c, in any case c&c are terrifics under sail, good windward ability , fast, nice hull lines , in other words wonderfull boats. I own right now a csy
44, a big diference , but some times i miss my old c&c.
Good luck .