Sorry this is off topic for this post, but it relates to your general project.
I just noticed that in DN13 the segment numbers actually seem to account for the peyyālas by having range numbers:
https://suttacentral.net/dn13/en/sujato#40-75.2
Are you encountering this in other places? I also find it in DN12, but I don’t think it is in the earlier suttas.