Need Android 5.0 stock kernal for SM-G900A veriety

Hi guys, so call me stupid but I incorrectly thought that I would be able to flash 4.4.2 onto my 5.0 AT&T device. Odin said it passed, but now I'm stuck in a bootloop that eventually terminates into recovery booting. I tried erasing memory to factory and wipe the cache partition to try and fix but no cigar. So what I am looking for (I think) is the 5.0 firmware so I can use Odin to re-install it. If anyone has any different advice, please let me know.

Thanks,
dman70090