P.H.
I understand your preference to teach your child spirituality at home because I felt the same way about that. But I put my children in a Christian-based preschool nonetheless and was quite pleased with it. They don't try to teach them complex theological teachings - it's very basic, basic stuff, like God is seen in nature, pray before eating, things that I did not find objectionable in the least even though we attended a church with very different theology.
I liked the idea of a faith-based center because it's not all about money with them.