This one is unfortunate for sure. There are surveyors who are thourough and some are not. You have to be clear even hiring a survey. Is it a valuation for insurance survey or is it an all systems structural survey? I had a client get a survey done on a 30 foot sailboat and showed me the bill $150. What! If I want a structural/systems survey and that means tapping for delam and a moisture reading that bill had better be for 6-9 hours. More like $800 and a thourough written report. A cd25 is a pretty simple boat but I think a proper mecanical/ structural survey would occupy 4-5 hours plus written report. Maybe 5-600 bucks worth. A quick once over for insurance is waay different than a real survey and unfortunately one needs to be aware of what you are requesting. I had a friend absolutely having to have a sailboat with teak decks. He would not take my advice and run until the third boat he "loved" had teak deck sealant/ bond failure. He got a real nice boat with fibreglass decks finally. A structural survey is pricey and it is tempting to skip it. Sorry you had this occur and I hope you enjoy the boat.