If you are using directional fabric, D9P can get tricky. I have a lovely D9P with 2 directional fabrics and the wheat goes one way and the chickens go another, and they were all in the same direction when they were just a 9P. I would make a sample block first just to make sure you end up with your block looking the way you want, no matter which pattern you choose to go with. The 9P, 4P, big block combo would be easiest and you wouldn't have as much trouble keeping the directional fabric going the right way.