Have you decided already? I get behind on reading these posts, and by the time I add my 2 cents worth, the quilts are probably finished, quilted, bond and given away!
I think the disappearing 9 patch would be great. I'd use the green print for the center of the D9P, and like you said, the stripe for binding and the tone on tone pink as backing. If you have enough of the pink on pink, it would be cute in the center of the D9P as well!
Great fabric!