[CKEditor 4.3.3] API Calls or source file to add elements to editor iframe head and body

Hi All

I am trying (so far so good) to build a Kunena-specific BBCode plugin. I would like to add 2 lines of calling Javascript files and 1 line calling a css file to the head, and one line of html to the body calling a scipt function, to the editor that is contained in the iframe. Is this possible using an API call, or if not, how would I go about it?

Trevor