Russell,
here is a link to a previous post re osmosis concerning my boat Felicite.
viewtopic.php?f=6&t=628That looks pretty bad and when you mention osmosis in fibre glass hulls people start looking funny. Don't worry though, those repairs you see there cost about $250 to repair by a professional. You can sometimes drive the cost right down on a purchase of a boat due to osmosis.
Osmosis is not a problem in Top Hats. Most have it, don't be put off by it.
The value is that a good surveyor should know what the value for condition is of the boat. He can save you heaps and make you feel confident of the purchase price.
NOW is the time to buy a boat. The current flood of imported boats and the economy is driving the prices down and you can get a bargain. Recently a boat was advertised here in Lake Macquarie for 10k, and 12 months later it went for $6,200. (Mk 1 with an outboard).
Generally if you get the boat slipped to survey and don;t buy the boat YOU pay for the slipping. If it hasn't been antifouled recently and the sale falls through YOU pay for slipping and the owner puts a coat of anti foul on it. If YOU buy it, HE pays for the slipping and you antifoul it. It's then right for 12 months. Make that arrangement clear before you slip it.
Buying a boat is the SECOND happiest day in a boat owners life!
Good on you for asking questions, there are no silly questions, just silly answers.
Enjoy your dreams, go for it.