Here is the latest Stock ROM from Sprint. This is what you have after the recently pushed 4.3 OTA. It is version 3.04.651.2
If you want to preview the 4.3 Sprint Stock ROM before updating you can flash this. It will also be useful in the future once another OTA hits Sprint. Remember if you still haven’t received the OTA update and want to you should flash one of my older Sprint Guru Reset’s.