I recently bought a used 2004 Toyota Prius that came with the OEM HID lights. I found that the lighting is very lacking and since a lot of my commuting (~120 miles/day) happens in the dark, this situation needs to be remedied. In reading through the forums, I found that the Morimoto Mini D2S kit is very highly recommended. In order to preserve my OEM headlights, I bought another set of used Headlights from another member on the forum. These headlights came from a 2005 Prius with standard Halogen lighting. Here are my questions before I place an order Can the Morimoto kit be retrofitted into that Halogen housing? Do I need to buy the entire kit - projectors, ballasts, bulb etc? Or do I need just the projectors and bulbs? My headlight auto leveling sensor is currently broken and hence the lights are not aligned correctly. Do I need to get this sensor fixed before I install the new kit? or does the kit have its own levelers? TIA.