I have customized org export to both html and latex extensively since I disliked many of the defaults (e.g. the use of article vs scrartcl, red borders around pdf hyperlinks). 

This left me wondering however, if it is possible to create org files that will produce the same output on every machine, regardless of the local emacs customizations (of course assuming that no hacks of the export engine are part of the configuration).

In order to make the files more portable I have been trying to make changes affecting export with things like #+LATEX_HEADER: but e.g. changing the documentclass to scrartcl seems to be possible only by changing a customization variable (org-latex-classes).

Is it possible to make the export engine assume defaults for all customization variables for a file (preferably through an in-file setting) and to specify those customization inside the file? 

- Klaus