Hi-

The path stuff still needs to be sorted in setup, but have you seen the @chauffeur_afni functionality here:
https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/tutorials/auto_image/main_toc.html
... and more specifically here:
https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/tutorials/auto_image/auto_%40chauffeur_afni.html
?

That would seem to be doing a looot of what you want, and perhaps with a simpler interface. For example, based on your code and this example:
https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/tutorials/auto_image/auto_%40chauffeur_afni.html#ex-4-overlay-beta-coefs-and-threshold-with-stats
I wonder if this is close to what you want (just an easier/more extensible interface):

@chauffeur_afni                                                       \
    -ulay             "${anat}"                                       \
    -olay             "${func_glt}"                                   \
    -set_subbricks    0 8 9                                           \
    -func_range       0.005                                           \
    -cbar             Reds_and_Blues_Inv                              \
    -set_dicom_xyz    0 0 0                                           \
    -delta_slices     14 17 11                                        \
    -opacity          6                                               \
    -thr_olay_p2stat  0.05                                            \
    -thr_olay_pside   bisided                                         \
    -prefix           Aud_Aget_axi_0.005                              \
    -set_xhairs       OFF                                             \
    -montx 3 -monty 3                                                 \
    -blowup           2                                               \
    -label_mode 1 -label_size 4

... though, you could use "-box_focus_slices AMASK_FOCUS_ULAY " to pick a zoomed-in autobox within which to make evenly spaced slices, rather than specifying both "-set_dicom_xyz 0 0 0" and "-delta_slices 14 17 11".

You can also add in the translucent way of thresholding, which I really like, see here:
https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/tutorials/auto_image/auto_%40chauffeur_afni.html#ex-5-overlay-beta-coefs-and-threshold-translucently-with-stats

--pt