Try using
$ wget -rk <url>
This generates a directory tree with a copy of the page in. It's your tree, you can set the permissions how you like, but remember that it will be Apache that is accessing it, not the remote user.
To test I made a copy of
start » user » wikipedia_pages_to_work_on. The URL is visible on the browser as
http://localhost/dokuwiki/doku.php?id=user:wikipedia_pages_to_work_on:
$ wget -rk http://localhost/dokuwiki/doku.php?id=user:wikipedia_pages_to_work_on
$ chmod -R 755 localhost
$ sudo ln -s <user-home-dir>/localhost/dokuwiki/doku.php?id=user:wikipedia_pages_to_work_on /srv/www/html/PageForBill
The URL
/srv/www/html/PageForBill will then open in any browser.