I, personally, wouldn't put too much stock in those practice MCATs. I find that people generally do better on the real thing when the pressure is on and their focus is at optimal levels. If you're a good standardized test taker and are able to concentrate fully on what you're doing, then you're MCAT score should be higher than your practice. At least that's how it was for me.
Anywho, apply to as many out-of-state schools you possibly can that has admissions stats similar to yours. Preliminarily, schools like BU, Finch, GW, Georgetown, Tulane and other private schools generally have admissions stats that mirror yours.
I'd look into buying Princeton Review's "Complete Book of Medical Schools 2000". It's an excellent resource because it lists every med school in the US, their admissions stats from 1999, and the costs, location, tendencies, curriculum, etc, etc.
And I can understand why you would want to leave Nebraska if that is the only state you've lived in your entire life. Getting out and experiencing new things and places is important in developing yourself into a more well-rounded individual. You won't get any beef from me about wanting to leave...but apply to UNMC anyways. Good luck, and Godspeed.