Absolutely, no way would you wear a set of brand new brake pads out in one single track day. Definitely a problem there.
With the camera thing, I find attaching my GoPro very easy with either the suction mount or the clamp. I may use the app to check the exact shot once or twice in a day, but other than that it's foolproof. Some TDs are happy with just suction, some want them tied down too. MSV tend to be stricter than most.
Definitely change both slave and master cylinders on your clutch sooner rather than later, don't leave it until you're stuck somewhere.
PF pads and discs are superb, I had them on mine. Top money, but top quality. Ally hats reduce unsprung weight, too. Get the Goodridge lines, you're talking peanuts in what a set of discs, pads and clutch bits are going to cost you. RBF660 or Endless fluid would be my choice, I used the Endless stuff on mine and there is nothing better.