Please Help Moto E 2nd gen XT 1506

This is gonna sound as a stupid request but please do hear me out .My friend gave me a Moto E 2nd gen XT 1506 3g dual sim and said he is unsatisfied with the experience of Lollipop(I'm still baffled by it) and he want to install Kitkat on the device. The device came to market with Lollipop so there is no stock Kitkat available (or is there ?)
Please suggest a stable Kitkat rom for this device Code name is OTUS
Thanks in advance