I know enough about boats to know that one should run away - very quickly - from one this price. Sometimes it'll be safe to consider it, but most of the time it will have issues. Poor upkeep can result in interior issues and hull issues, for example. And the last thing you want to do is drop your keel while out and about.
I guess what I'm saying is, for $5K, many people will forego due diligence and end up adrift, emptying their wallets into the ocean. Don't do that.