I have a 2002, f-150 Lariat, Supercrew FX4 with the "frosted" stock headlight lens for the halogen bulbs. I want to change the headlights to the HID and understand I need to get the clear lens. Is this done as easily as it sounds? What lenses do I need? I've heard about the lenses from the Harley Davidson model. Does these fit as well? I'm new at this and just want to make sure I can do it, before I purchase the conversion kit.