Allowing the TinyMCE scripts to be outside of the module folder

To ease the maintenance of sites I would make possible to have the third party scripts (generally speaking, this should, to me, applies to every modules) outside of the module directories.
For example

• sites
  • example.com
    • files
    • settings.php
    • themes
  • all
    • modules
      • getid3
      • tinytinymce
      • views
      • ...
    • thirdparty
      • getid3
      • tinymce
      • ...

For Tiny Tiny MCE I just had to made a small modification to the tinytinymce.module file

1. Adding:
   <?php
    $form['tinytinymce_scripts_path'] = array(
      '#type' => 'textfield',
      '#default_value' => variable_get('tinytinymce_scripts_path', drupal_get_path('module', 'tinytinymce') .'/tinymce/jscripts/tiny_mce/tiny_mce.js'),
      '#title' => t('Location of tiny_mce.js'),
    );
?>
   in tinytinymce_admin()
2. Changing:
   <?php
         $path = drupal_get_path('module', 'tinytinymce');
         drupal_add_js($path.'/tinymce/jscripts/tiny_mce/tiny_mce.js', 'module', 'header', false, true, false);
?>
   to
   <?php
         /*
         $path = drupal_get_path('module', 'tinytinymce');
         drupal_add_js($path.'/tinymce/jscripts/tiny_mce/tiny_mce.js', 'module', 'header', false, true, false);
         */
         $path =variable_get('tinytinymce_scripts_path', drupal_get_path('module', 'tinytinymce') .'/tinymce/jscripts/tiny_mce/tiny_mce.js');
         drupal_add_js($path, 'module', 'header', false, true, false);
?>
   in tinytinymce_theme_textarea()

Of course some "help / instructions" have to be changed too.
An other advantage of this is to be able to easly switch between 2 versions of TinyMCE...
Do you like it?