Ahhh, see. That gives a little more insight. Now your getting into more of what KIND of national sorority you want. Keep defining that, because as Fuzzie said, you'll have to defend it to a lot of people.
I'm going to say that I have much less knowledge of "going national" than others do (and I politely defer to them if I've made a mistake

). However, I have known several people who have attended a private, religion-based university (actually several of them). In all of their cases, the campuses did not want national groups (NPC, NIC, and the like) on their campus, probably because these national groups were not specifically "religious" and weren't exactly under the campus' control (remember, my explanation came from students and not the admin.). HOWEVER, these campuses allow student "clubs" to form and from what I've seen, act as fraternities/sororities. WHY the campuses don't want these groups to at least ban together and become regional, I don't know (other than they may be on a campus of a different religion). **By the way, all of this info came from Arkansas campuses. That could make a BIG difference in the explanation.**
Now, if the above made any sense at all, you could possibly have a great selling point to becoming a national Christian based sorority. One of the first hurdles is doing some research on other religious schools and asking them WHY they don't allow/want nationals on that campus. Start with your school. . . Do they have nationals? Why or why not? If you get really ambitious, you can probably talk to Fellowship of Christian Athletes and see how they managed to spread across the land. (Seems like one day they weren't there, the next day they were!!) It all goes back to one question, though: *What do you have to offer that all these other groups don't?*
By the way, can you post your purpose/mission/symphony for us? Any info that you normally give the public (like Chi O's symphony, AST's creed, etc). Other than me just being curious

, that might help us point you in the right direction.
Good Luck, and let us know what's up!