Here's your chance. Looks like a pretty good deal to me, considering that the hx alone is probably worth that at today's copper prices. STSS recently quoted me $3,500 for probably the same heat exchanger--no tank included.
http://cgi.ebay.com/HSTarm-HS-Tarm-...ryZ41987QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/HSTarm-HS-Tarm-...ryZ41987QQssPageNameZWDVWQQrdZ1QQcmdZViewItem