My 1981 Pearson 53 has original rigging and I do not plan on replacing it until I get close to my blue water adventure, in about 7 years. If you’re not competitively racing and your survey has not uncovered any safety issues, save the money. If you’re still concerned, have the rigging surveyed every year or two to determine if there are any safety issues. Another suggestion is to replace the rigging in stages. Replace opposite shrouds every quarter until all the rigging is replaced. This spreads the cost over a period of time.
Pearson 53 Ketch