Have disqus comments on separate page

hey,

I'd like to have Disqus comments on an own page, similar to the option provided by the normal comment module.

First solution I came up with, is to define a new a path with a custom modul "node/%node/disqus - but I wonder if there are better ways?

Here's my current solution:

/**
 * Implements hook_menu().
 */
function ef_menu(){
  $items['node/%node/disqus'] = array(
    'title' => 'comments',
    'page callback' => '_ef_disqus',
    'page arguments' => array(1),
    'access arguments' => array('view disqus comments'),
    'weight' => 1,
    'type' => MENU_LOCAL_TASK,
    'context' => MENU_CONTEXT_INLINE,
  );
  return $items;
}

/*
 * page callback for node/%node/disqus
 * only display the disqus comments
 */
function _ef_disqus($node){
  $render_array = node_view($node, 'full');  
  return render($ra['disqus']);
}