Posting on behalf of David Babsky:
No idea, sorry; only YOU can tell when it’s ashore and you inspect it yourself. If it’s just a ‘blister’ it could be rubbed down, filled and re-painted around that area.
The water dripping from the keel? I couldn’t say: you’d have to examine it carefully yourself.
Sorry I can’t be of more help. You’d really need to get a competent surveyor to look at it out of the water and then give you a clear opinion. That’s what we did before buying ours, and that’s really your best course of action.