This may help...I had to search for the same thing last fall

http://pages.pathwaynet.com/~bketner/boatblind.htm
http://mickyfranks.tripod.com/id112.htm
http://expert.cc.purdue.edu/~keithlej/dux/blind.html

Not sure if this will help or not but it is a start...Personally I like the scissor blind idea use bimini top hinges