Wasdale Triathlon

At the moment I am giving a lot of thought to preparing for the Wasdale Tri, one of a few races that claim to be the hardest Middle Distance Tri in the world. I don't suppose it is but it is certainly up there with the hardest.
The bike route goes over Hardknott and Wrynose passes, in both directions and the run is up and down Scafell and Scafell Pike.
The rules require you to carry extra kit and I've had to buy new trail/fell shoes, a new 30t sprocket and rear mech.
I've yet to decide on what to wear but I think that will depend a lot on the weather on the day. I'll post later about my final kit decisions.