I saw your response on the forums and wanted to get back to you before I leave for a couple of weeks paddling in the Adirondacks. AA grade canoes were trimmed in mahogany; decks, thwarts, seats, gunwales etc. As far as cedar I've seen on the forums where members have used white cedar for planking but since you want to try to restore this as close as possible to original I'd stick with red. You can get planking from Old Town, look under the builders/restorers section. Several "professional" listed under that section also sell cedar.
As far as questions go right on the forum and ask away. This group is incredibly helpful in sharing their knowledge and experience. Check the archives as well; just use the search function and you'll be able to find many of your questions answered.
I'll attach the catalogue page for the 1929 OTCA, the specs and grade page from 1929 as well. It will give you exactly what OT specified back then.
Feel free to contact me again if you need help. I just won't be around for a couple weeks. Good luck , Al