Here is another option: go with a plywod canoe or two. The cost is much lower and the construction time can be much less, too. Most designs for plywood canoes don't really need fiberglass for strength or waterproofing, but most people put on a layer of glass cloth on the outside to ensure a continuous water barrier. There are a lot of plans around which predate the popularity of glass on wood, too.

Here is one called the Glide Easy canoe from a series of free plans at:

http://www.svensons.com/boats/

T hese plans were published in June, 1957. There are better construction techniques available now.

If I was building this design today, I'd modify the construction process by making a scarf joint to connect the two sheets of plywood, instead of using a band of wood on the inside of the boat as a backing block for a long butt joint. That would give me a boat which was about 6 inches longer than specified in these plans -- so my boat would be about 15'8" to 15'10" long.

I wouldn't bother with an internal keel, either. I'd simply cut the one middle form, and make it slightly bigger to compensate for it not riding on an 1/8th inch band.

The ends should bend into place with usual stitch and glue techniques. Forcing the single center form into the middle of the boat would define the hull shape. A little epoxy on the edge of that should hold it in place permanently. Put in the thwart or gunwales first and you can use wedges to get a tight fit between the center form and the hull.

The shape would be maintained by the center thwart and any other thwarts or seats. Inner and outer gunwales would stabilize the shape of the boat, and any plywood which was sandwiched between them could be trimmed to suit the desired shape.

I'd hang the seats and the thwarts from the gunwales, as is done with strip-built canoes, rather than mounting them through the hull.

Once you have your plywood scarfed, you should be able to make a hull over a weekend, and glass it the next weekend. the final fitting of seats and such would be a few hours here and there, so, this should be buildable in under 50 hours.