Westsails boats come up for sale on a regular basis. 

YachtWorld's search for Westsail boats for sale.

Sailboatlistings.com - search for Westsail - (ads for boats seem to never be removed)

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.