Thinking of building another canoe. I want a big tandem, maybe even set one up for three seats. The EM White Guide 20 in Gilpatrick's book is looking perfect for me. I believe Memequay has built one. The Winters Quetico also interests me. I'm not concerned much with the weight of the canoe. I want to be able to carry three big guys, and a lot of gear. Any other plans I should consider?