If anyone else is suffering from the pitfalls of faded and cloudy plastic headlights, I’d highly recommend the autoglym kit!
My headlights weren’t that bad in all honesty, but after a couple of hours, some light prep work (2/3 layers of masking tape around the edges of the bumper to protect the paint is particularly important!), they’re now crystal clear.
The kit comes with a set of sand papers of various grades to sand and buff the lights, as as well as a compound that is used to give the final finish.
As an added bonus, the kit comes with a drill adapter that really helps to take the manual effort out of the job, and in my case, can also be used afterwards to buff out minor bodywork scratches etc.
Give it a go!