@Waldy
I should probably clarify what i tried to fix my broken system so far in detail:
-Updating Manually
I copied both your provided update packages (2.2.0 and 1.1.1) to the SD card and tried to update manually from there. The result is my Mars being stuck on "Verifying update package..." for 60 minutes for both updates, so i aborted the process.
-Flashing the system
Factory reset the device first, restarted into bootloader, flashed system.img from your 1.1.3 dump
from this post to the system partition using rkflashtool, restarted, crashed back to recovery. Cleared data again, restarted, crashed again.
Is there anything I've been missing?