[XeTeX] Minimal files needed for XeLaTeX package to run on Windows

[Andy Black]

Hello,

I have an XML-based way of writing linguistic papers and have been 
working on writing some XSLT transforms that will convert the XML to 
XeLaTeX. The idea is that an author will create the XML-based linguistic 
paper and then at the press of a button, a PDF will be produced.  The 
process for producing this PDF includes converting the XML to XeLaTeX 
and then running xelatex to produce the PDF.

For my testing, I've gratefully used the MiKTeX package for Windows 
(http://miktex.org/2.7/setup).  Since the people using my XML-based way 
of writing linguistic papers will only be concerned with getting the 
generated PDF and will not be wanting to have all the capabilities that 
the MiKTeX package provides, I'd like to create a streamlined 
installation package that includes only the files needed for this 
particular application.  That is, I do not want to have to tell my users 
that they need to download 80MB worth of MiKTeX when they will not need 
the vast majority of those 80MBs.

So my question is, "What is the minimum set of files needed to run 
xelatex on a Windows machine?"  Some other important factors in this 
issue are that the users may use just about any Unicode Windows font (so 
the package has to include the appropriate programs for dealing with 
these) and the generated XeLaTeX file also uses these packages:

booktabs
colortbl
color
fancyhdr
fontspec
hyperref
longtable
multirow
needspace
tabularx
xltxtra

Thus, the installation package will need to include the appropriate 
files for these.

Finally, are there any licensing issues that must be addressed in 
creating such a streamlined installation package?

Thank you very much for any help you can give in this task.

--Andy