We just did a similar application. Formatted in a two column table on a
single page that was 17in x 11in with appropriate margins in the table
cells. Formatted that to the area tree (XEP Intermediate Format) and then
some simple code to manipulate XML was applied that file, changing it to a
two page document by a mere examination of the "x" location in the area tree
for each component rendered inserting "right hand" pages and putting the
"right hand" content into those pages.

The header/footer for each page was put into original and copied to each
page in the conversion process.

If you would like some assistance in setting up something similar, just
contact me off list.

Cheers,
Martin

Kevin Brown
RenderX
------------------------------

Date: Fri, 7 Feb 2014 14:32:48 -0800
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
From: Martin Holmes <mholmes@xxxxxxx>
Subject: Re:  XSL:FO approach for facing-page translation
Message-ID: <52F55F10.9030103@xxxxxxx>

On 14-02-07 01:52 PM, Tony Graham wrote:

Alternatively, you can do the two-pass approach with RenderX and its
intermediate format [1].

Another good idea -- thanks! I never knew it existed.

Cheers,
Martin