Re: ePub XSLT out there?

I've been doing something like that as part of my tei2html project for
Project Gutenberg. See http://code.google.com/p/tei2html/ I hope my
code is less arcane than the TEI toolsets, but there is some natural
complexity due to the need to split files up into multiple parts (ePub
300k size limit; need to split CSS from HTML as style tag is
deprecated), and still having all cross-references and other aspects
of the data work properly. I build the entire ePub structure from
within XSLT 2.0, except for the copying of images and zipping it all up.

Good day,

I just wandered if anyone has already gone though the trouble of
creating a basic XSL template to generate the minimum ePub files and
 structure. If not, I will try and put something together on my own.
 I'm far from an expert in XSLT and creating directory structures,
indexes etc. is something I have not yet done with XSLT, but I'm
sure with Saxon and a bit of fiddling around it should be do-able.

Any insights from anyone who has ventured down this path before will
 be helpful. I found something similar in TEI toolsets, but it's
complex and a bit overwhelming. I think a template that creates just
 the minimum ePub structure would be well received by a lot of people.

Kind regards,
Jacobus