BG developments for the discs and pads. Not sure if they are still around? Im pretty sure i gave you a receipt from them with the documents for the car.
The discs are fine, they crack instantly the moment you put them on and stay that way forever. I wouldn't change them. At least keep the old ones, youll kick yourself when the new ones crack after the first track day
Dont touch any other brake pad except the pagid RS29 yellow pads. They are actually endurance racing pads i think. Everyone will tell you that you are mad, but they are the only ones that i found worked. Maybe its the way I drive, but I tried DS2500, DS3000, every EBC pad and hawk pads as well. All of them melted in a couple of track days or gave me fade on the nurburgring. The DS2500s took my discs with them as well on brands GP, the discs on there now are its second set. The RS29s will make your bum pucker at the price but they are worth every penny. Im not sure exactly what your going to do with it but my target with this car was a sub 8 minute ring lap and i cannot stress enough how much no other brake pad allowed me to do that except the pagid. They are hard, feel horrible, and squeal at times; but they will stop you no matter what.
Re: the lights, i advise the cheapest replacement for them would be a different MOT Tester
but that's your choice.
I am 6 foot 4. Make sure you put a helmet on and sit in it before you commit to raise the seat up. Not sure if your planning on installing that cage i gave you but youll want that head room once your sat in it with a bash hat on! even more so if the cage goes in! I had to drop the seat because i had to tilt my head otherwise while wearing a helmet!
Thats why the seats are hard mounted, no space for slide rails.
sorry for the MOT fail but glad its only cheap stuff. If it was me id change the pillow balls and take it somewhere else for MOT