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

[He lives]

I have read up on evolution and the "could have" articles. It is all a bunch of hypothesis which I would call junk science. Man could not have evolved from a one celled animal. Mayflies have a lifespan of 24 hours. In the last 50 years they have passed through numerous generations without evolving into something other than a mayfly.

You can't possibly have paid proper attention to the actual science if you're ignorant enough to present that mayfly analogy.  Any educated teenager can tell you that time and reproduction are not the only driving forces of the natural selection process.  They could also show you current, ongoing examples of evolution being measured and documented.
Mayflies.  Seriously?  That one was even more ridiculously ignorant than the 747 example.  Give it up, troll poe.  You dig your painfully obvious ignorance hole deeper with every post.
Mayflies.     You didn't graduate from middle school, did you?  Or are you from a long line of sisters and brothers marrying each other - like the fantasy offspring of "Adam and Eve".

You only hold your position because you've been told all of your life that an absurd book of fairy tales is literal truth, and that your sky demon imaginary monster god will fry you forever if you dare to question it.  That's the only possible answer for rejecting hard science in favor of delusions.

Bold added. These are examples of adaptation, not evolution, there was no species change here. The birds are still birds, fish are still fish, reptiles are still reptiles etc.