Hello David. My name is Jack and I own Sandy Point Boat Works. If you want to call and talk or email me I am happy to tell you the positives and negatives and can certainly go over what it takes to make your own kit. Not trying to sell you anything, just trying to help. We have a teaching site which has no sales stuff on it at all if you simply want more education on the subject. you can find it at www.intheboatshed.com
Making your own kit is not difficult if you have the right tools, patience and access to the right stock. In general you will need a good quality table saw with a good fence, lots of featherboards, a decent surface planer if you are as critical as I am to make them exactly 1/4" thick and a good router and router table with a decent set of canoe bits.
That is the short of it. If you want to talk about it, don't hesitate to give a ring or shoot an email. Happy Holidays.