Picked up on this race really late and was wondering if someone can give me some advice?

Was meant to be doing Ennerdale tomorrow but twisted my ankle a couple of weeks ago and it doesn't feel up to 6 hours of rough fell running. What's the terrain like on this race, in terms of ankle turning!?! I've done a couple of runs in the Peaks which have been rough and tussocky, but then also done the Edale skyline route which was pretty ok underfoot (apart from the bogs).

If it's not too bad, might come and give this a go. Never been up on the Kinder plateau at all before.