Westsails boats come up for sale on a regular basis. 

YachtWorld's web site list of Westsail boats for sale by many yacht brokers.

Sailboatlistings.com - search for Westsail

Bud Taplin of Westsail Parts Company  (aka Worldcruiser Yacht Co.) of Newport Beach, California specializes in all things Westsail including advice on his forum and a wide range of custom manufactured Westsail parts.  

Please see the Westsail Parts Company web site for Westsail boats for Sale. 

Paula Taplin (1943 - 2013) wrote the following article about the "New Owner" experience in Pacific Skipper Magazine, April, 1978.