Steve makes an important point about a surveyor.

However many designs/models are discussed in depth on various 'owners
groups' etc. located all over the web.
It is incredible how many important items are not found by highly
touted and well recommended surveyors. I well realize there is a
definite difference between a simple 'insurance' survey and a full
scale in-depth survey .... but without developing a specific list of
known problem items typical to each design and presenting this list to
a 'surveyor' you can blindly accept major repair potential through
acceptance of an 'insurance' survey. I cant reiterate this too much:
once you decide on a certain design, have preliminarily chosen 'the'
boat - go to the owners groups and carefully extract identified
'problems' of the design and be sure to have the surveyor pay special
attention to these items.