I also think that is a good option.
Additionally, you can add it to doku.php (which is what I do).
In that case put it somewhere after the line containing
$ID = getID();
(which is what I do)
Try to add:
<?php
// BBclone
define("_BBC_PAGE_NAME", $ID );
define("_BBCLONE_DIR", "bbclone/");
define("COUNTER", _BBCLONE_DIR."mark_page.php");
if (is_readable(COUNTER)) include_once(COUNTER);
?>
That way your page ID is displayed properly in bbclone as well.
Be carefull not to add the <?php and ?> tags if you are already within those tags (like with doku.php), which will cause problems.
Hope that helps,
JDT