I'm about to embark on building a skin on frame from Chris Cunninghan's book. My only problem is gunwale wood. Spruce around here (Ontario) is so full of knots, I can't get a 3" width for gunwales. I was going to use pine (5/4, rough, select (no knots)) that I could plane to 7/8", but the major lumber supplier worried it would be too brittle to bend for gunwales. They recommend ash (5/4, rough, green) as being more supple. But it is almost double the density! Cost is the same for me as pine. The also suggest red cedar (8/4 x 8", rough, vg)but the cost is $200 for 2 gunwales. I'm tempted to go with pine. Any thoughts?