for that price
You could definitely get a Sandpiper 565 or the similar sized Edel, or a Tanzer 22, look on Craigslist and Kijiji in the Toronto area. Probably even a little cheaper. All will offer some inside space (far from standing headroom). That's about as big as I've seen regularly listed with a trailer - is that something you need?
There are for sure lots of 25' boats for sale on western Lake Ontario or Lake Erie, but do you really want to pay to haul it to you? You will have to look harder to find boats that size with a centerboard.