I've had a 390 for 9 years now and put quite a few miles on her. Mine had blisters, be sure to watch for these. The surveyor should be able to spot them easily. Also, I had to re-bed the large overhead ports, not a fun job but I did eventually find the right tools.
I have repaired, upgraded and replaced a number of systems on the boat, so let me know if you have any specific questions.