Though not strictly stitch-n-glue, I've constructed two plywood lapstrake canoes of Tom Hill's design. See the Book (and video) Ultralight Boatbuilding. These boats are strong, lightweight, elegant, and a joy to paddle. I happened to build solo paddle 11.5 ft long boats, where seating is as in a kayak - on the floor, use a double bladed paddle. Plans are available for a larger boat.
I've stared at the Chesapeake Light Craft canoe kits long and hard. These are stitch-n-glue and seem very simple to build. My stepson built one of their kayaks (in a class) with little to no woodworking experience. I haven't proceeded to build this canoe because I'm restoring an Old Town cedar/canvas. I also don't think they're as handsome as Tom Hill's design - fewer, broader strakes and deck not flush with the rails (though this could be accomplished with a little extra work). I am quite sure they are easier than Tom's boats, given that they are in kit form and you don't have to build a form first.
I haven't found a collection of CLC canoe builders to get their direct experiences, but I don't doubt the boats are relatively simple to build, lightweight and sturdy.
Keep us posted as to your findings.