I just checked on YachtWorld and there is a decent and surprisingly cheap CS36 in Jamestown for sale. You might want to look at it. The CS36 and the Niagara are a couple of my favourite boats but I would likely take the CS because of the better performace. They were both very well built and you can find quite a few on the Great Lakes since that is where they were built.
Fresh water is a wondefull thing and transportation is not really all that much.
The Niagars's were built as cruisers and the original layout was oriented that way. Smaller compartments with the head and galley aft. That layout would work very well for passage making but since their main market was the Lakes they came out with a second interior which is more open.