Found them again for $95 @JSE Surplus. Not sure how much shipping is but they're showing plenty in stock...
http://www.jsesurplus.com/3.5lbDropinTrigger-Vendorcloseout.aspx
And you can get a lpk and the trigger for $120...
http://www.jsesurplus.com/ar15lowerpartskitwithdrop-in35lbtrigger.aspx
http://www.jsesurplus.com/3.5lbDropinTrigger-Vendorcloseout.aspx
And you can get a lpk and the trigger for $120...
http://www.jsesurplus.com/ar15lowerpartskitwithdrop-in35lbtrigger.aspx