Timber Framers Guild Forums Tools Timber Engineering Chicken or the egg?

The Client is purchasing the materials.

I have already designed the frame utilizing KD FOHC #1 or better Douglas Fir. In our first conversations the client is looking at Long Leaf yellow pine. The only mecanical values for this material is in a 1902 book "Encyclopedia of Timber Framing and Carpentry and in Steve Chappell's first book. Neither help with the defects of being reclaimed.
Thanks for the help.