I am fairly new to the sailing world, but i love it already...!
I studied aeronautics, so i am familiar with the power plants and structural things (metal rather than wood!). but Boats are quite different beasts, and you have salt water rather than misty air to deal which i found out is a pretty amazing eating machine!
I understand that with older boats there are tons of stuff that can fail or weaken over time.
This boat has had a lot of work done to it already including a newer diesel, rigging, sails, etc...thats why i liked it.
but the interior on them is absolutely terrible and this one is not that great! ..
I really like Islander 30 boats, C&C and tartan, not familiar with other makes you mentioned, but will keep an eye for them indeed.
i did miss a great deal on a nice Corvette 31 ..