Who selected the surveyor?
If it was the dealer, beware. If the dealer gave you a list of surveyors, that is a bit better. You just have to call and ask some questions to get a feeling if the person is a good fit. Typically, you would ask if they have surveyed the model before and if so, what is on the surveyors list of items to check up on. Of course you are past those steps.
You can learn a lot being at the survey but 10 hours of driving is a deterrent.
A surveyor will generally not tell you to not buy a boat but may use body language to warn you that there are some serious issues.
Assuming the surveyor will be doing moisture readings and hull tapping, note that if the boat has been out of the water for months, moisture issues are harder to identify since wet hulls can 'dry' out.
Remember that the surveyor probably won't look at the motors in detail, nor will he or she dump hour reports or codes if any. The dealer may do that but you really need to be there to verify what was done.
I am not sure but there may be a 300 hr maintenance service that is more extensive than the usual 100 service. If so ask the dealer if they will do it as part of the deal. Get everything agreed to in writing .
Finally, if you go, bring a friend who has some boating knowledge and who isn't emotionally attached to the boat
