If I understand what you are asking, there is a way to do this using TeX hackery in your ptxprint-mods.tex. Every verse number is turned into the styled text by a macro called \AdornVerseNumber which takes the verse number as the parameter. We would need to override that in your job to include book and chapter. Here is my attempt:
\makeatletter
\def\AdornVerse#1{\id@@@\space \ch@pter .#1}