Thanks, everyone for your ideas! I don't think I'm going the rag quilt idea, I don't want to lose an inch of the corduroy by testing it. I agree that the flannel plaid needs to shine. And I like the idea of a "brick lay" pattern for the cord, that would really set it off. Very good point about prewashing the flannel, I had forgotten about that!
I'll post a pic when I get it finished. I'm currently working on a quilt for my dad so it may be a while.
Thanks again!!