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Jeff, I don't know how far away from you this boat might be, but it seems to be a good deal, especially with the skirts w/ it.
http://roanoke.craigslist.org/boa/989051723.html

I'll second Steve's recommendation....a Native Ultimate 14.5 for a tandem....a Ultimate 12 for solo.
For the water types you listed, and knowing you're a fly fisherman, the Ultimate will give you...