Rosieres - I would like to answer your 6-point "rational inquiry" through which you have found God:
(1) "Universe exists and seems to have a starting point" doesn't mean it must be deliberately created by a conscious and intelligent entity.
(2) "Ethics in an objective sense , originated in God" doesn't sound like a rational enquiry at all to me. Ethics are the moral concerns of man, and are hence meaningless without man. Besides, ethics have changed/evolved over time, and people from different cultures can even have different ethical values. So clearly, there are no objective ethical values, external, immutable, and "given" to mankind by a deity.
(3) "Disciples clearly believed Jesus was resurrected, so he must have been" Err, sorry, but this is not even logical, let alone a "rational inquiry".
(4) I read this several times and can't say what you think is particularly rational about it. So you have a sense of God in your life. Good for you, but how is that in any way part of this rational inquiry you said brought you to finding God?
(5) There is no "ontological nature of God". There is an ontological argument for the existence of God which makes very little sense to me, personally. Maybe you would like to explain why you think it is rational and convincing.
Your "God is the ground of being, the capacity for all things to exist" sounds like you think God = the fabric of space/time. However, since God has created the universe, he needs to be separate from it (unless you want to argue that God created Himself, hence the universe created itself, which is not very Christian afaik). Anyway, what is your source of information? (Not speculation from some philosopher).
(6) It is good that you accept you don't know everything, but again can't see how this is supposed to be a rational inquiry that brings us to find God.