I think it sounds awesome. I'd volunteer yourself to make the snacks for the first 1 or 2 until you get going and then start a rotation or something. Can you have someone watch the kids so the ladies can have time away? I know many churches have retired ladies that wouldn't mind playing with kids for a couple of hours each week. 10:30 is fine if you ask me. Most kids stop taking morning naps around 1-2 years old.