I installed K1R on italian PC-GOG version (without the dialog.tlk file that was shipped separately with K1R).
There are no problem until the Black Vulkar Base Sublevel (file tar_m10ab.mod) where texts are missing.
The DLGEditor shows the texts perfectly; nevertheless they are not displayed in the game. DLG Converter doesn't help.
Even I tried to extract files from the mod file with ERF Editor, to convert them with DLG Converter, to reimport them with ERF Editor overwriting. It doesn't work.