Tolkien despised allegory. He claimed that there was no alllegory whatsoever in his stories. to quote on of his letters (from the front of my copy of the Sil.)
Quote:
I dislike allegory - the conscious and intentional allegory - yet any attempt to explain the purport of myth or fairytale must use allegorical language
That is the start of the part on allegory. I am ot going to sit here and type it all out. Maybe you should search the net for a copy of the letter, or check your copy of the Silmarillion [assuming you have it].
I hope that this helps a little, though no doubt I haven't helped ay all

Good Luck with your project.