What beliefs would we consider reasonable for a self proclaimed Christian to hold?

[He lives]

You mean it wouldn't be possible for life to have come from non-life?  Well, if it isn't possible, then how could god have done it?

(Doctrine and Covenants | Section 93:29 - 30)

29 Man was also in the beginning with God.  Intelligence, or the light of truth, was not created or made, neither indeed can be.
30 All truth is independent in that sphere in which God has placed it, to act for itself, as all intelligence also; otherwise there is no existence.

(Pearl of Great Price | Abraham 3:21 - 24)

21 I dwell in the midst of them all; I now, therefore, have come down unto thee to declare unto thee the works which my hands have made, wherein my wisdom excelleth them all, for I rule in the heavens above, and in the earth beneath, in all wisdom and prudence, over all the intelligences thine eyes have seen from the beginning; I came down in the beginning in the midst of all the intelligences thou hast seen.
22 Now the Lord had shown unto me, Abraham, the intelligences that were organized before the world was; and among all these there were many of the noble and great ones;
23 And God saw these souls that they were good, and he stood in the midst of them, and he said: These I will make my rulers; for he stood among those that were spirits, and he saw that they were good; and he said unto me: Abraham, thou art one of them; thou wast chosen before thou wast born.
24 And there stood one among them that was like unto God, and he said unto those who were with him: We will go down, for there is space there, and we will take of these materials, and we will make an earth whereon these may dwell;