[Q] How to downgrade HTC One M8 Euro 5.0.1 GPE to Stock Kitkat topic

Hi,

I'm looking for a bit of guidance as I have never downgraded a phones OS and don't want to balls this up.

I had a stock HTC One M8 bought from Amazon UK running kitkat 4.4.4. I became impatient and decided to upgrade the ROM to Lollipop 5.0.1 GPE to test out the new OS. After a couple of months use and with the news that the official HTC OTA update is nearly available I want to jump back to stock as I miss Sense. I foolishly didn't make any backup's before I upgraded which I now know is a big mistake.

These are the steps I took to root the phone.

I unlocked the boot-loader using the HTC web page instructions
I used sunshine to s-off the phone
before wiping cache and installing the HTC M8 GPE 5.0.1 ROM using HTC One 2014 (M8) AIO Toolkit by Hasson2000 v2.0

Here is my current phone status

*** Software Status Modified ***
M8_UL PVT SHIP S-OFF
CID-HTC__001
HBoot-3.19.0.0000
Radio-1.22.21331147A1.29G
OpenDSP-v46.2.2-00564-M8974_FO.0811
OS-
eMMc-boot 2048MB
Oct 27 2014,18:44:38.0

I would be grateful if anyone could lend any assistance in helping me revert back to Kitkat.

Regards,

Dan