This response leads me to believe that you haven't even looked at the mod which is linked. Whilst the mod linked isn't compatible with TSLRCM, the mod is "lore friendly" in the fact that you do a sidequest for a Weequay mechanic and as a reward he gives Kreia a cybernetic hand... I don't see how that isn't "lore friendly" and "getting it out of nowhere" when you have specifically asked for the same mod but with Bao-Dur.
So you want a Kreia to have a cybernetic hand which looks like this:
Keep this in mind, you are requesting this mod... that means you want somebody else to make the mod for you.
Linking that cybo-arm is pretty much useless due to the fact that any modder who takes up this requests will have to, not only model a cybo-arm (often from scratch) for Kreia, but they also need to attach said cybo-arm to Kreia's model which looks like this:
Any modder's who make this mod would discard your concept for a cybo-arm as it probably won't physically fit with Kreia's robes.
And before you say "But Kreia's mechanical hand doesn't add a mechanic hand... it looks just like her old hand" to which I say...
"Have you not watched Empire Strikes Back?"