Attempting to add a plugin to tinymce for a wordpress plugin I am creating

Hello advanced wordpress community.

I am attempting to make a plugin (modify really and will release it to the community here).

In this senario, I need the plugin to modify a text box using the native wordpress tinymce with one addition, I want to use the tinymce fullpage plugin normally included with a standardard tinymce install.

to add the tinymce full page plugin i have tried adding the following:

<?php
	function myformatTinyMCE($in) {
		 $in['remove_linebreaks']=false;
		 $in['gecko_spellcheck']=false;
		 $in['keep_styles']=true;
		 $in['accessibility_focus']=true;
		 $in['tabfocus_elements']='major-publishing-actions';
		 $in['media_strict']=false;
		 $in['paste_remove_styles']=false;
		 $in['paste_remove_spans']=false;
		 $in['paste_strip_class_attributes']='none';
		 $in['paste_text_use_dialog']=true;
		 $in['wpeditimage_disable_captions']=true;
		 $in['plugins']='tabfocus,paste,media,fullscreen,wordpress,wpeditimage,wpgallery,wplink,wpdialogs,wpfullscreen';

		 $in['wpautop']=true;
		 $in['apply_source_formatting']=false;
		 $in['toolbar1']='bold,italic,strikethrough,bullist,numlist,blockquote,hr,alignleft,aligncenter,alignright,link,unlink,wp_more,spellchecker,wp_fullscreen,wp_adv ';
		 $in['toolbar2']='formatselect,underline,alignjustify,forecolor,pastetext,removeformat,charmap,outdent,indent,undo,redo,wp_help ';
		 $in['toolbar3']='';
		 $in['toolbar4']='';
		 return $in;
}
		$settings = array('textarea_name'=>'template');
		wp_editor( get_option('html_template'), 'htmlemaileditor', $settings );
?>

However upon inspection doing that makes it so that tinymce is looking for the tinymce fullpage plugin that does not exist. I then tried downloading tinymce and extracting just the fullpage plugin directory and placing that plugin in my wordpress plugin i am creating at the path "/fullpage_plugin/plugin.min.js". I then tried referencing it doing the following:

<?PHP
add_filter('mce_external_plugins', 'myplugin_register_tinymce_javascript');

function myplugin_register_tinymce_javascript($plugin_array) {
   $plugin_array['myplugin'] = plugins_url('/fullpage_plugin/plugin.min.js',__file__);
   return $plugin_array;
}

?>

It is indeed seeing the file, however for some reason tinymce is still looking for the plugin at:

/wp-includes/js/tinymce/plugins/fullpage/plugin.min.js

Any experts out there know of a way to get this working...? I am modifying the html email plugin in a way that I think everybody will enjoy.

Thanks!