I am not expert. Not expert in Puppy, not expert in L18 processing. And I don't like to translate... If I have to write in 3 languages in the same matter, I don't translate but write all 3 versions fresh...
But I did discover yesterday a certain new member at the Puppy forum, Exton, the owner of the wonderful Linux and Android page https://extix.se .
And I already use and play with his distros months and months. And read his interesting comments for each new stage of his distro.
And did read with highest interest that he encourage other people to imitate him and create new iso's exactly as we want using the refracta tools coming from the Devuan world. He did also encourage to strip after that the own new distro using the refracta exclude list.
Now, after those explications, the idea:
Do inverse that: put really all stuff you can spare into the exclude list and comment with rem only the script that you will have in you distro: Devuan do the rest, you never need to translate somewhat important! Finish the claim to have no translation!