Hey Chiron,
Now that you mention that you already been down to rabbit hole, I guess things would be simpler for you to play around.
If you have already not found on this site
https://wiki.mobileread.com/wiki/K5_Index
and
https://www.mobileread.com/forums/sho...19#post2169819
And I think it will be childs play for you.
Regards,
dkg