Looking for Lollipop (5.0.1) Stock ROM

I need to dirty flash my current ROM in order to get the benefit of a custom kernel... The only problem is that it's stock. I can find RUUs, nandroids, and similar files for factory restore purposes, but can't seem to locate a stock ROM I can simply dirty flash in recovery.

Would anyone happen to know where I might find one?

Much Appreciation in advance!

Syntropic