I thought about a repair kit, but I would need one for each light (£50) and I can buy a pair of used lights for this. Also debated splitting the headlights but knowing my luck, I will go though all the effort and not be able to remove the internals.
The headlights are currently silliconed in place - I didn't notice this when I brought the car and the c**t that owned it before didnt bother to tell me he had bodged it up.