Why and how the text could be Bavarian

[JoJo_Jost]

Are benched gallows cth ckh cph cfh and oddballs like cthh other etc… all rolled up to t and k?

In my mind there’s always been the possibility of a column row based table or set of tables hiding away either syllables or I suppose consonant clusters of 1-3 characters with a separate o table particularly designed for labels or numbers.

All that to say I like the idea of requiring two components working together to decipher a plaintext.

No. They are not collapsed into k or t.

In this analysis, the following are treated as separate atomic / one glyphs: cth, ckh, cph, cfh, as well as ch, sh, and
qo. 

And yes, that's basically how the cipher must work—the research I've done here makes that clear. However, I don't see any evidence of numbers, at least not yet