Then go original. If there isn't much out there it means you've got a lot of scope to present your own argument. Honestly, that's a positive, not a negative. I did very well in my (literature) B.A. dissertation despite making very little reference to secondary discourse; I wanted to focus on putting forward my argument and analysis. Go for it!
Anyway, I'll try and add something to the discussion tomorrow, but right now I really need to go to bed. On Facebook I told Ichi that I needed to hit the hay, and proceeded to debate with him on here for the next hour. Stupid FES.