I did find a version with a few pages translated to English on https://www.mangaupdates.com/showtopic.php?tid=45238, but not many, and only for one chapter. I assume I have more than one chapter, as an old archive I have (which I think I got from https://myswordisunbelievablydull.wordpress.com/2010/03/28/this-is-bikko-and-you-can-help-us-bring-her-to-life/) has the following folders:

[C79] Bicco
[C82] Increspatura
[C84] Mezzanotte
[C81] Succhiona
[C83] Purgatorio

Anyway, just really hoping I can find an English translated version (or someone who can translate it to English!). Or hell, even someone who knows enough moonrunes to email the author and ask if there are more chapters that are not yet on the open internet.