Last time I talked to them, they told me they currently do not carry them in fiberglass or make them in carbon fiber anymore. The completed one with glass was $1049.00. And $800.00 for a fiberglass one with out glass. Carbon fiber was an option with an additional cost. Cost was not stated. See this link.
http://www.gtmotorsport.net/index.php?menu=Boxster+Series&page=Hardtop
