[Q] Galaxy S4 (GT-I9505) GPe - Recovery issue with Lollipop OTA topic

Hello,

I am fighting since yesterday to get the OTA update to install so I wanted to share my current steps and hopefully someone can suggest how to move on.

I have a GT-I9505, initially 'samsung version'. I installed TWRP in order to install the GPe edition. My phone is rooted.
I used to have TWRP 2.6.x

A few days ago, I got like many the OTA update for Lollipop. I let the phone download it and reboot. That´s when things became a bit more complicated.
After reboot, it went to TWRP where no update happened. If I reboot, I get back to be GPe version 4.4.4
I tried upgrading TWRP to a recent version without better results. I tried with TWRP 2.8.1.0

I have read in several places that the issue is that the OTA update expects the stock recovery.
Unfortunately so far I did not find a stock recovery for my S4 that does the trick.
I tried using the "Miustone_stock_recovery-flash-GE4.3". I could install the recovery.

I did save the OTA zip but I don´t know how I can skip the download and use the OTA zip... so so far I do it the 'lazy-lengthy' way and I wait for the download.
After flashing this 4.3 recovery, I get a slightly better result (but nothing better than I got using TWRP): After downloading the OTA, the phone reboots, goes to recovery and it tries to install the OTA update but it fails with the following message:
mmc_test.ko has unexpected content... Status 7

Can anyone suggest a way to easily install this OTA? I guess using a correct recovery could help... if I could find it.
Any hint appreciated.