I was able to bring the Navitel MS700 back to life.
@ apolyps3, thank you very much for all your help and sharing the files.
If you have any questions - except those that have already been answered by a colleague @ apolyps3 - I will gladly share what I was able to do and observe.
I haven't tried installing WinCE on this device yet. I am waiting for a small capacity microSD card.
@apolyps, thank you again.
EDIT:
I was able to run WinCE on NAVITEL MS700 with the WAYTEQ overlay.
Spoiler: large images
Thanks to @apolyps for help and to the 4pna crew for the files I used.
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