Maybe you could take into consideration XML: you could write your site's contents in XML and having them transformed in two different HTML versions on the two servers. In fact, since what changes is not the content but just the header and footer, you could even use the same identical XML document on the two servers, and having it transformed in different ways by different stylesheets

A Perlish way to do this is AxKit. You can use standard XSLT stylesheets or a XPathScript one (XPathScript is a a stylesheet language that uses Perl). Take a look!

Ciao!
--bronto

# Another Perl edition of a song:
# The End, by The Beatles
END {
  $you->take($love) eq $you->make($love) ;
}