it can be definitely done, think it requires the front bumper to come off then you can remove the headlights. on the US site people bake the headlights in the oven to loosen up the glue holding the lenses on and then prise them off. The internal reflector can then be painted and just resealed with silicone. I just dont think I would be brave enough to put them in the oven
I'm afraid not, I just followed some guides from the US forum
I painted with Halfords satin black, I first made sure to wash the reflectors with washing up liquid and a scouring pad to give it a good key and wiped down with IPA.