Re: Add hook to end of `custom-create-buffer-internal'

[Richard Stallman]

    Please a new hook, say, `custom-buffer-create-hook', and run it at the
    end of `custom-create-buffer-internal'.

Suppose we move the call to custom-mode to the end of
custom-buffer-create-internal.  Would custom-mode-hook then serve
this purpose?

     This is for things to be done
    _after_ the buffer has been filled with its text. An example: a
    function to fit a one-window frame to the buffer contents.

It seems that special-display is the right way to do this job.
Can you do the job that way?