I think I have a boat...

If this Craigslist meeting ends up shaking out, I'll be the proud owner of a secondhand Prijon Seayak!

This boat seems perfect for my trip needs:

• 16' long, which is right in my ideal 14'-18' range.
• Great V-shaped keel for tracking
• Rudders, hatches, and this nifty day hatch already included  --EDIT: The one I ended up getting is a later model, so no day hatch.  Womp womp.  But lots of lash points!--
• It's plastic, which means that, while it's a lot heavier than fiberglass or kevlar, it'll put up with bangs and scrapes on the river much better.  The NFCT eats fiberglass boats for brunch.
• Blow-molded, versus roto-molded.  If I recall my 2.008 correctly (that's Manufacturing and Materials II), this means that the polymer chains are a lot longer, making it a much more durable boat than ABS roto-molded ones, and with thinner, lighter walls.  It supposedly handles much more like fiberglass, without feeling like you have to pretend the bottom of your boat is made of pizza dough.
• Bright color.  When I want a ninja boat, I'll invest in composite.

Going to take a look later today--hope it all pans out!