I would go for the smoked indicator inserts however dont the mk4 headlights have the indicators in the headlights so you could wire them up to work and simply tint spray your original covers just an idea. Not sure on bulbs as i run a HID kit atm but there are some ultra bright bulbs you can buy from most places which im sure more people will be along for ideas. HID kits are going to be illegal next year for MOT'S so i will be on the look out for bright bulbs aswell 
HID kits will be illegal on non standard fit HID cars? Wtf? HID give better visibility so why make them illegal?? That's just F'in barmy
Think the main reason is that Factory fit HIDs require auto levelling and washers, this is to stop the super bright HIDs blinding oncomming cars.
seems silly but i can see why they are doing it.
i was under the impression that if you fit self levelling and washers they would still be legal, all be it at great cost i am sure.