Congrats on the sprouts! Keep up posted on the growth rates, etc. I'm still waiting for mine to come break the surface, but then again, it has only been 1 week for mine. I planted 8 rhizomes and if they all survive and flourish, I have no idea what I am going to do with all of the hops in a few years from now. It will be a good problem to have....I guess. I am in a similar situation to you, so I took advantage of trees on my property as well. It seems very similar to your situation, they get sun for several hours in the a.m. and early afternoon and then again in the evening from the back side. I hope it's enough, because it was a lot of work! Check out my thread and offer me any bit of advice that you can along the way, because I'm new at this as well.
Keep us posted!