You build from the .pdf file linked under the Yost-style heading. The other drawings are for plywood builders. But, contact Bryan first; I think he intends to release updated drawings.

http://www.paddlinglight.com/articles/free-kayak-and-canoe-plans/siskiwit-bay-multi-chined-kayak-plans-for-plywood-building/

You and/or your buddies need to be familiar with the Yost building techniques:
http://yostwerks.com/WoodSOFMain.html

And, be sure you've seen my earlier post and pics:

http://www.kayakforum.com/cgi-bin/Building/index.cgi/page/1/md/read/id/207689/sbj/skin-on-frame-siskiwit-bay-mc-progress-report/

: Hi,

: Thanks for providing all the information and pictures of your kayak
: which looks great.

: I am also interested in building this kayak using the SOF method. I
: am a novice builder but I have plenty of time and determination
: and there are other SOF builders in my area.

: Did you build it from the free plans provided at the PaddlingLight
: site? Would it be helpful if I bought the $30 package which
: includes Electronic Nestings or alternatively buying the full
: size printed plans.