7 years late..
We own a 1978 Crown 28. She (and all Crowns) was built in Vancouver BC. Al Naim, the owner of Calgan Marine, was instrumental in Crown throughout the company's existence.
There are lots of Crowns still in service in these parts. They have a reputation for being solid, seakindly cruisers. None too fast though: quite heavy (our 28 weighs 4,900 lbs..) Built like a tank. Point reasonably well and carry a nice amount of sail. Cabin in our boat has plenty of headroom for average adults and is nicely appointed.
Our boat has some osmosis, as do many of this vintage. Not a big concern, but I do plan to have her hauled and to plane her hull next winter.
I'm told ours came with a Volvo; it now has a 20 hp Perkins Perama, which seems to be a good fit for her.
Any questions drop me a note!