[Zope] No mod_proxy, can I still use Zope behind Apache?

I would like to get Zope pages served transparently from a mainly Apache-based site - all I have access to are .htaccess files, so I've created a ~/public_html/zope directory and tried to put a RewriteRule entry in a .htaccess file there to send things to zope at port 8080. But I don't know exactly how to construct the rewrite rules and the Apache examples on zope.org seem to require mod_proxy as well as mod_rewrite. Sadly, only mod_rewrite is available on the server. I did also try to use the PCGI script, but with no success. Any help would be appreciated. Felix.