Thanks to everyone who replied.
Since posting this I have spoken with my sup and he's told me to go for it. I started my project in Feb and have finished two-thirds of my first chapter and he think I should present a paper on one element on this chapter - nice backhanded compliment there! plus no need for too much extra researching, reading, and writing.
Of course I have to be accepted to present, and I'm not counting my chickens, but we'll see how it goes.