I too would be interested in a Searunner
37. The only one I've seen around is the one in Nova Scotia
. Make sure you check with Marples and get one built to plans sold after 1976.
You should be able to get a gem of a 31 for less than 15K. A really nice one sold in the Keys for around 8k about 18 months ago. They are really small if it's any more than 1 or 2 in the crew.