Hello everyone, I'm about to buy my first sailboat, and I'm not really into sailing so I have some questions about the boat before I go see her. It is a 30ft Beneteau First 1988. -You can see in the photo of the keel, there is something like a crack. Do you think it is cracked, or it is just the paint? if it is cracked, is it a big problem or can easily be fixed? -The propeller looks very old and dusty. Should that be replaced immediately? or can I sail her like that and replace it 2-3 months later? And the bottom also looks dirty. Not that bad though. Is painting a must, or can I fix the cracks only for now and paint it later? Thank you very much!!!