iPhone motherboard transplant

I am in a bit of a pinch, as I just broke the digitizer ribbon cable when I was replacing the glass/LCD of a Sprint iPhone 4. I have a lot of iPhone 4's laying around, and I was wondering if I can replace the mother board. If I were to take the motherboard off of the phone that I broke the digitizer to, and installed it in another Sprint iPhone 4, would there be any issues? My main concern is connecting to the cellular network and the persons data. Both of which is stored on the mother board, correct? (At least on a non AT&T iPhone 4)