Regarding plans for Pirogues, there is a very nice one called the Piragua. You can get plans, maybe free, from
Duckworks Boat Builders Supply or in the book Ultrasimple Boatbuilding by Gavin Atkin. Here's a Yahoo group for his mouseboat variations:
mouseboats : Mouse Boats
Here's a Yahoo group for the boats like the Piragua and a cool variation called a Toto:
Michalak : Michalak's Small Boat Designs
The Toto is one beautiful boat, much like the Piragua but with a slight V-bottom. I bought these plans ($12) from Duckworks, but have yet to build it.
There's also a free plan set for a cheap canoe, very much like a Pirogue, on
Bateau.com - boat plans on line since 1993 I like this one, and may build it yet.
There may be others you can get if do search for Free Plans, pirogue plans, etc.
I am about 75% finished with my Cruising Mouse project, which has features of a canoe, pirogue, John-boat and kayak. It is just under 12 feet, has a short for- and aft-deck for flotation (also makes it easier to get in and out and layout fishing gear, etc. I has enough capacity to carry two with full camping gear, but can be solo paddled like a kayak. It is also from Gavin Atkin, and I have his book but used a PDF set of plans I got from the Yahoo Group.
www.jemwatercraft has some great plans (they designed the free canoe plans a free kayak plans called a Laker). I ordered the Cape Fear set but have yet to build it. Here's the link to their Pirogue plans:
JEM Watercraft - E-mail Plans