The Finn fleets have a very active racing programme at all levels from Olympic events through to the equally keenly fought Classic fleet through the CVRDA.
A company called Sweeney Kincaid are selling a large collection of wooden racing dinghies and included is a Fairey Finn, K88. There’s a discussion and links on the CVRDA forum and Facebook page. It appears to have both a Collar wooden mast and a Needlespar, but checks would have to be made to be sure.